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Smooth-Base Hex-Key Adjustable Leveling Feet

Smooth-base hex-key adjustable leveling feet combine the smooth, rib-free base with a hex (Allen) socket in the threaded rod head. Adjust the height from above using a standard hex key instead of reaching under the furniture to turn the base by hand. Same smooth bottom for easy sliding on hard floors. Static load capacity: 80 kg per foot.

$5.88

4 = 1 chair · 8 = 2 chairs · 24 = 6 chairs

Item Number Not Available Product Type Features

Not sure what size? See the size chart ↓

📦 Sold in packs of 4 — quantity adjustable at checkout

Overview

Smooth-Base Hex-Key Adjustable Leveling Feet

Standard leveling feet adjust by turning the base by hand from below the furniture. That requires reaching under the furniture, gripping the base, and rotating it. On furniture with low clearance, against-the-wall placement, or heavy loads on top, that hand access is difficult or impossible. Smooth-base hex-key adjustable leveling feet solve this with a hex (Allen) socket in the top of the threaded rod head. Insert a standard hex key from above, turn the rod, and the foot extends or retracts without touching the base. Height adjustment from above.

Ø 30 mm PA base at 9 mm height with smooth, rib-free bottom surface and hex socket in the rod head. Zinc-plated steel M8 threaded rod. Static load capacity: 80 kg per foot. Smooth-base hex-key adjustable leveling feet are Allen wrench adjustable leveling feet for furniture where hand access to the base is limited. Rod lengths 14 and 33 mm. Black. Sold individually.

Available Sizes: 2 Smooth-Base Hex-Key Adjustable Leveling Feet

Both variations share the same Ø 30 mm smooth base with hex socket head. Choose the rod length that matches your floor’s unevenness and the adjustment range you need.

M8 x 14 mm

Shorter rod for fine adjustment on nearly level floors. 80 kg per foot. Weight: 16.9 g. Black. Minimal rod protrusion when at low extension. For furniture where the foot should extend as little as possible below the base.

M8 x 33 mm

Longer rod for moderate adjustment on uneven floors. 80 kg per foot. Weight: 18.2 g. Black. Standard commercial adjustment range. For furniture on floors with noticeable unevenness where the longer rod provides more leveling flexibility.

For smooth-base without hex-key (hand adjustment only), see smooth-base adjustable leveling feet (M8/M10, 4 variations). For standard ribbed base with more thread options, see low-profile or standard base. For screwdriver adjustment from above (different approach), see notched thread. For custom configurations, contact Business Solutions.

How Hex-Key Adjustment Works

The hex socket is machined into the top of the threaded rod head, which sits inside the threaded insert when installed. The socket faces upward, accessible from above the furniture leg through the tube opening (on hollow tube legs) or from the side of the leg joint.

Step 1. Access the hex socket

On furniture with hollow tube legs and round, square, or rectangular threaded inserts, the hex socket is accessible through the tube from above. Insert the hex key through the tube interior to reach the rod head.

Step 2. Turn the hex key

Clockwise extends the foot (raises that corner). Counterclockwise retracts the foot (lowers that corner). Each turn provides precise height change based on the M8 thread pitch.

Step 3. Check the level

After adjusting each foot, check the furniture level. Repeat at each leg as needed. The hex key provides the leverage for precise fractional turns that hand-gripping the base cannot achieve as easily.

Dual adjustment: smooth-base hex-key adjustable leveling feet can be adjusted either by hex key from above or by hand-turning the base from below. Use whichever method is more accessible in the moment. The hex socket does not prevent hand adjustment, and hand adjustment does not require the hex key.

Two Features in One: Smooth Base + Hex-Key Adjustment

Smooth-base hex-key adjustable leveling feet combine two specialized features that serve different needs. Understanding each independently explains why the combination matters for specific applications.

Feature 1: smooth, rib-free base

The flat, polished PA base bottom allows easy sliding on hard floors. The same smooth surface as standard smooth-base leveling feet. Furniture slides when pushed without the resistance that ribbed bases create. Hex socket leveling feet smooth base that combines easy repositioning with from-above adjustment.

Feature 2: hex socket for from-above adjustment

The hex (Allen) socket in the rod head allows height adjustment using a standard metric hex key from above the furniture. No reaching under the furniture. No gripping the base. No tipping the furniture to access the feet. Hex-key leveling feet M8 that adjust from above for situations where below-furniture access is limited or impractical.

The combination is particularly valuable on furniture that gets repositioned frequently (smooth base benefit) and sits in positions where the feet are hard to reach (hex-key benefit). Conference tables pushed against walls, office desks in corner positions, and display fixtures in tight retail layouts all benefit from both features simultaneously. In environments where furniture layout changes weekly or daily, smooth-base hex-key adjustable leveling feet reduce the total time spent on furniture maintenance by combining sliding convenience with tool-assisted leveling in a single component at each leg.

When to Choose Hex-Key Leveling Feet

Smooth-base hex-key adjustable leveling feet serve a specific use case: furniture where both easy sliding and from-above adjustment are needed. The hex-key feature adds value when hand access to the base is restricted.

Choose hex-key when
  • Furniture sits against a wall with limited access underneath
  • Furniture has low ground clearance that prevents hand access
  • Heavy loads on top make tipping the furniture impractical
  • Multiple adjustments are needed quickly (hex key is faster than hand-gripping)
  • Precision is critical (hex key provides better leverage for fine turns)
  • The furniture slides frequently and needs re-leveling at new positions
Standard smooth-base is sufficient when
  • The furniture base is easily accessible from below
  • The furniture is light enough to tip for hand access
  • Leveling is done once and rarely adjusted afterward
  • M10 thread is needed (hex-key is M8 only)
  • Cost savings matter (hex-key adds to the unit cost)

How to Install Smooth-Base Hex-Key Adjustable Leveling Feet

Installation is the same screw-in process as every leveling foot. The hex socket does not change how the foot installs. It only adds an additional way to adjust the height after installation.

What you need
  • Smooth-base hex-key adjustable leveling feet (M8 x 14 or M8 x 33 mm)
  • M8 threaded inserts already installed in the furniture legs
  • A standard metric hex key (Allen wrench) matched to the socket for from-above adjustment
Installation steps
  1. Confirm the M8 threaded insert is seated in each leg with the nut facing the floor.
  2. Thread the smooth-base hex-key leveling foot into the insert nut by hand. Turn clockwise until snug.
  3. Set the furniture upright on the floor.
  4. Adjust from above using the hex key, or from below by hand-turning the base. Level each leg independently.

Specifying Smooth-Base Hex-Key Adjustable Leveling Feet

For furniture manufacturers and facility managers, smooth-base hex-key adjustable leveling feet simplify the specification for furniture that needs both easy repositioning and tool-assisted leveling. Two SKUs: M8 x 14 and M8 x 33 mm. Choose based on the floor unevenness the furniture will encounter. Hex key leveling feet for furniture that will be placed against walls, in corners, or in tight layouts where hand access below is restricted.

On commercial projects, include a hex key in the furniture delivery kit so staff have the tool immediately available. Smooth-base hex-key adjustable leveling feet are compatible with all M8 round, square, and rectangular threaded inserts. For production quantities, visit Business Solutions.

Floor Surface Compatibility

Smooth-base hex-key adjustable leveling feet provide the same sliding performance as standard smooth-base feet. The smooth, rib-free PA bottom glides over polished concrete, glazed tile, sealed hardwood, luxury vinyl, and laminate. On textured or soft surfaces (matte tile, carpet, rubber), the sliding advantage is reduced.

For floors where scratch prevention is critical, the smooth PA base provides gentler contact than ribbed alternatives during both static load and sliding. For dedicated PA6 scratch protection with a low-profile base, see low-profile with pad. For standard base with PA6 pad, see standard base with pad.

Hex Key vs. Notched Thread: Two Approaches to From-Above Adjustment

The leveling foot range offers two different from-above adjustment methods. Smooth-base hex-key adjustable leveling feet use a hex socket for an Allen wrench. Notched thread leveling feet use a screwdriver slot for a flathead screwdriver. Both solve the same access problem with different tools.

Hex key (this product)

Smooth base only. M8. Allen wrench provides precise torque control and multi-turn adjustment without repositioning the tool. The hex key stays engaged in the socket through continuous rotation in either direction. Better for fine, precise adjustments where fractional turns matter.

Notched thread (separate product)

Available on standard and low-profile bases. M8 and M10. Flathead screwdriver fits the slot. Most people have a screwdriver readily available. The screwdriver must be repositioned after each partial turn. Better for quick, rough adjustments where a screwdriver is more accessible than a hex key.

What Smooth-Base Hex-Key Adjustable Leveling Feet Solve

The same leveling and sliding functions as smooth-base leveling feet, with the added convenience of from-above adjustment. The National Wood Flooring Association (NWFA) recommends protective contact surfaces on all furniture legs, and the smooth PA base provides gentler floor contact than ribbed alternatives.

Adjustment without access below

The primary advantage of the hex-key feature. On a conference table pushed against the wall after a meeting reconfiguration, the back legs are inaccessible for hand adjustment. A hex key inserted through the tube from above reaches the socket and adjusts the foot without moving the table away from the wall. Allen wrench adjustable leveling feet that solve the access problem.

Easy sliding on hard floors

The smooth base advantage. Furniture slides when pushed. The rib-free PA bottom glides over polished concrete, tile, hardwood, and luxury vinyl. Unlike dragging furniture with ribbed or unprotected bases, the smooth surface reduces scuffing during repositioning. Combined with hex-key adjustment, the furniture can be slid to a new position and re-leveled from above without lifting or crawling under the table.

Faster, more precise adjustment

A hex key provides mechanical leverage that hand-gripping a smooth base cannot. Fine partial turns are easier with a hex key. On furniture with four or more legs, cycling through each leg with a hex key is faster than hand-adjusting each base individually from below. On commercial furniture that gets re-leveled after every reconfiguration, the time savings accumulate.

Same load capacity as standard

The hex socket does not reduce the M8 threaded connection’s 80 kg per foot capacity. The socket is in the rod head above the threaded section and does not weaken the thread engagement. On a four-legged table, 320 kg total capacity handles standard commercial furniture weight.

Materials and Construction

Same PA body and zinc-plated steel rod as all smooth-base leveling feet. The hex socket is machined into the rod head during manufacturing.

PA Smooth Base + Fe HDG Rod with Hex Socket Dual adjustment

The Ø 30 mm PA base at 9 mm height provides the smooth floor contact surface. The zinc-plated M8 rod provides the threaded connection. The hex socket in the rod head provides the from-above adjustment interface. Three functions in one component: floor contact, height adjustment, and tool-assisted adjustment access.

Smooth-Base Hex-Key vs. Other Options

vs. Standard Smooth-Base (no hex key)

Standard smooth-base adjusts by hand only. Same smooth base, same dimensions. M8 and M10 threads. Choose standard when hand access is easy. Choose hex-key when hand access is limited or when tool-assisted precision is preferred.

vs. Notched Thread Leveling Feet

Notched thread provides a screwdriver slot in the rod end for from-above adjustment using a flathead screwdriver. Hex-key uses a hex socket for an Allen wrench. Both solve the from-above adjustment problem with different tools. Notched thread is available on standard and low-profile bases. Hex-key is only on smooth base.

vs. Low-Profile (ribbed base, hand adjustment)

Low-profile has a ribbed base for grip and adjusts by hand only. No smooth sliding. No hex-key option. Choose low-profile when sliding and from-above adjustment are both unnecessary.

Where Smooth-Base Hex-Key Adjustable Leveling Feet Work Best

Ideal applications
  • Conference tables that slide against walls between meetings
  • Office desks in corner or wall-adjacent positions
  • Heavy furniture that cannot be tipped for base access
  • Retail display fixtures in tight floor layouts
  • Any M8 furniture on smooth hard floors with limited base access
Consider alternatives when

Where People Use Smooth-Base Hex-Key Adjustable Leveling Feet

Commercial office and conference

Conference tables that reconfigure between layouts and end up against walls where the back feet are inaccessible. Office desks in rows or against walls where maintenance staff need to re-level without pulling each desk away from the wall. Smooth-base hex-key adjustable leveling feet let technicians walk down a row of desks with a hex key, adjusting each foot from above in seconds without disturbing the workspace. The hex key provides quick, precise adjustment from above without disrupting the workspace layout. In open-plan offices with 50 or more desks, this efficiency saves hours of maintenance labor compared to tipping each desk for hand access. Available for bulk orders. For commercial pricing, visit Business Solutions.

Retail and hospitality

Display fixtures in tight retail floor plans where the fixture back sits against a wall or another fixture. Restaurant tables that slide to different positions and need re-leveling at each new spot. The combination of smooth sliding and hex-key adjustment means staff can reposition and re-level a table in seconds without crawling under furniture or tipping loaded tables. Smooth-base hex-key adjustable leveling feet are specified by restaurant chains and retail groups that prioritize operational speed during floor resets and seasonal layout changes. For furniture with round, square, or rectangular threaded inserts, smooth-base hex-key adjustable leveling feet provide the most convenient adjustment method available in the leveling foot range.

Maintenance and Inspection

Same maintenance as standard smooth-base leveling feet. Check periodically that the foot is tight and level. Wipe the smooth base bottom clean periodically to maintain sliding performance. Confirm the hex socket is clear of debris before inserting the hex key. A hex socket packed with dust or floor debris can prevent the key from seating properly, leading to stripped engagement. On furniture that gets adjusted frequently, keep a hex key attached to the maintenance toolkit for that space or stored in the furniture itself.

Smooth-base hex-key adjustable leveling feet are sold individually for single-foot replacement. The PA base and zinc-plated rod do not degrade under normal indoor conditions. If the hex socket becomes stripped from excessive force or the wrong key size, replace the foot. Always use the correct metric hex key size. Do not use imperial Allen wrenches in the metric socket. Do not use pliers or adjustable wrenches on the hex socket. The socket is designed for a hex key only, and improper tools will strip the engagement surfaces and require replacement of the entire foot.

Related Products

Without hex key

Smooth-Base: same base, hand adjustment only. M8/M10, 4 variations.

Other from-above adjustment

Notched Thread: screwdriver slot, standard/low-profile bases.

Specifications

Specification Details
Product Type
Adjustable Leveling Feet – Type S (Hex Socket Head)
Materials
PA (Polyamide) base + Fe HDG (Hot-Dip Galvanized Steel) stem
Fit Style
Tool-based tightening with hex key
Floor Compatibility
Hard floors (tile, wood, concrete, laminate, etc)
Furniture Compatibility
Frames, cabinets, racks, equipment
Leg Compatibility
Metal or plastic threaded inserts (M8 compatible)
Base Diameter
Ø 30 mm (1.18")
Thread Sizes
M8
Thread Lengths
14 mm, 33 mm
Weight Capacity
80 kg (176 lbs) static load per foot
Color Options
Black
Installation Type
Hex key adjustable (imbus head)
Key Benefits
Tool-based access, durable non-marking base, corrosion-resistant stem
Indoor / Outdoor
Indoor | Covered Outdoor | Uncovered Outdoor

Size Chart

Base Diameter (Ø) Thread Size (M) Threaded Stem Length (L) Base Height (H) Static Load Capacity (SL)
30 mm (1.18")
M8 (8 mm)
14 mm (0.55")
9 mm (0.35")
80 kg (176 lbs) / pc
30 mm (1.18")
M8 (8 mm)
33 mm (1.30")
9 mm (0.35")
80 kg (176 lbs) / pc

Frequently Asked Questions

What hex key size do I need?

The hex socket accepts a standard metric hex key (Allen wrench). Check the socket diameter on the rod head to confirm the exact size. Standard metric hex key sets include the required size. No special or proprietary tools are needed.

When is hex-key adjustment better than hand-turning?

When you cannot easily reach under the furniture to grip and turn the base. Recessed legs, furniture already positioned against a wall, heavy items on top that make tipping impractical, or furniture with low ground clearance. The hex key inserts from above into the rod head and turns the threaded rod without touching the base. The foot extends or retracts without hand access below.

Does the hex socket affect the smooth base?

No. The hex socket is in the top of the threaded rod head, not on the base bottom. The smooth, rib-free base is identical to standard smooth-base leveling feet. The bottom surface slides the same way. The hex socket just adds an alternative adjustment method from above.

Can I still adjust by hand-turning the base?

Yes. The hex socket is an additional adjustment option, not a replacement. You can turn the base by hand like any standard leveling foot, or insert a hex key from above and turn the rod. Both methods adjust the height. Use whichever is more convenient for the situation.

Why only M8?

M8 at 80 kg per foot covers the standard furniture weight range where hex-key adjustment is most commonly needed. For M10 or M12 without hex-key adjustment, use smooth-base (M8/M10) or standard base (M6 to M12).

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