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Z Type Corner Brackets | 304 Stainless Steel Right Angle Connectors for Woodworking & Car

Regular price £19.99
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📦 Free UK & US Shipping   •   30 Day Money Back Guarantee   •   1 Year...
Universal Car Seat Belt Anchor Bracket | Sturdy L Shaped Mounting Kit

Universal Car Seat Belt Anchor Bracket | Sturdy L Shaped Mounting Kit

Regular price £14.99
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🔧 Free UK & US Shipping   •   30 Day Money Back Guarantee   •   1 Year...
Black child seatbelt adjuster strap showing dimensions of 30 cm length and 6 cm width on a white background
Black child seatbelt adjuster strap showing dimensions of 30 cm length and 6 cm width on a white background

Seatbelt Adjuster for Kids | Child Shoulder Guard Buckle Safety

Regular price £15.00
Sale price £15.00 Regular price £30.00
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★Fits every vehicle · Free UK & USA delivery The Shoulder Guard That Keeps the...
Black triangular car seat belt adjuster pad with snap buttons showing dimensions of 19.5 cm top width, 9 cm bottom width, and 24.5 cm height on a white background
Black triangular car seat belt adjuster pad with snap buttons showing dimensions of 19.5 cm top width, 9 cm bottom width, and 24.5 cm height on a white background

Seat Belt Adjuster for Kids & Short Adults, Neck Comfort Clip

Regular price £15.00
Sale price £15.00 Regular price £30.00
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✈ Free UK & USA delivery on every order Seat belt comfort for the in-between...
Black textured car seat booster cushion showing dimensions of 40 cm length, 36 cm width, and 6 cm height on a white background
Black textured car seat booster cushion showing dimensions of 40 cm length, 36 cm width, and 6 cm height on a white background

Height Boost Car Seat Pad for Short Drivers | Breathable & Portable

Regular price £20.00
Sale price £20.00 Regular price
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Beige
★FREE UK & USA DELIVERY★CRASH CAR CERTIFIED★FIVE COLOURWAYS★FREE UK & USA DELIVERY★CRASH CAR CERTIFIED★FIVE COLOURWAYS...
Front view of a beige portable baby booster seat with yellow accent padding and a teddy bear safety harness against a black background
Front view of a beige portable baby booster seat with yellow accent padding and a teddy bear safety harness against a black background

Portable Baby Booster Seat | Lightweight Travel Car Seat for Kids

Regular price £35.00
Sale price £35.00 Regular price £70.00
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★ Free UK & USA Delivery★ Lightweight & Portable★ Easy Wipe-Clean Care★ Free UK &...
Black adjustable two-point car seat belt extender strap with red release button and metal mounting brackets
Black adjustable two-point car seat belt extender strap with red release button and metal mounting brackets

Two-Point Adjustable Universal Car Seat Belt Extender (ECE R16)

Regular price £15.00
Sale price £15.00 Regular price £30.00
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★  ECE R16 Certified★  Free UK & USA Delivery★  30-Day Money Back Guarantee★  ECE R16...
Black bump belt adjuster for pregnant women installed on a car seat to position the seat belt comfortably below the belly.
Black bump belt adjuster for pregnant women installed on a car seat to position the seat belt comfortably below the belly.

Pregnancy Safety Belt Adjuster - Crash Tested & Certified

Regular price £30.00
Sale price £30.00 Regular price £60.00
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🛡️ Crash Tested & Certified · Keeps the belt in the safe position, below the...
Black metal chime mute adapter designed to silence seat belt alarms for cargo and tools
Black metal chime mute adapter designed to silence seat belt alarms for cargo and tools

10-Pack Seat Belt Cutter - Emergency Car Escape Tool

Regular price £20.00
Sale price £20.00 Regular price £40.00
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★ 10-Pack for every vehicle★ Free UK & USA delivery★ Stainless razor blade★ 10-Pack for...
Gray seat belt chime mute clip designed to silence passenger seat alarms for cargo
Gray seat belt chime mute clip designed to silence passenger seat alarms for cargo

End-Ding Seat Belt Alarm Stop | Silent Cargo & Package Chime Mute

Regular price £10.00
Sale price £10.00 Regular price £20.00
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🔇  One click-in. Zero dinging. The chime stopper for cargo, bags and tools. Silence The...
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Recently Viewed Products

Seat Belt Mounting Hardware & Accessories

🛡 Every component engineered for seat belt use and certified to meet FMVSS 209 requirements

The Right Hardware. The First Time.

Installing or replacing seat belts means getting the mounting hardware exactly right. A bolt with the wrong thread pitch, a missing backing plate, or a bracket that does not align can compromise the entire restraint system. We carry the full range of seat belt mounting hardware, all engineered specifically for seat belt use, so you can complete your installation with confidence.

Why Hardware Selection Matters

Seat belt mounting hardware is not interchangeable with general-purpose fasteners. FMVSS 209 specifies exact thread dimensions, material grades, and strength requirements for every component that anchors a belt to the vehicle. Using the wrong bolt or plate can mean the difference between a restraint system that holds and one that fails under load.

That is why we stock only hardware that is purpose-built for seat belt installation. No guesswork, no substitutions, no compromises.

What We Carry

  • ▸Shoulder bolts, 7/16" x 20 fine thread
  • ▸Grade 5 and Grade 8 nuts and bolts
  • ▸Backing plates and anchor plates
  • ▸Snap hook anchors and eye bolts
  • ▸Seat belt brackets and threaded mounting plates
  • ▸Complete hardware kits with bolts, nuts, washers, and brackets

The Hardware Range

🔧

Shoulder Bolts

7/16" x 20 fine thread shoulder bolts designed specifically for seat belt pivot points and anchor locations.

🛠

Grade 5 & Grade 8 Bolts

Heat-treated, high-strength bolts and matching nuts in both grades, sized to FMVSS 209 specifications.

🛡

Backing & Anchor Plates

Reinforcement plates that distribute load across the mounting surface for a secure, lasting anchor point.

🔗

Snap Hook Anchors & Eye Bolts

Forged anchor points for lap belt and harness connections, built to withstand high-stress loading.

📐

Seat Belt Brackets

Angle brackets, double-bend brackets, and retractor mounting plates for precise belt positioning.

📦

Complete Hardware Kits

Everything you need in one package: bolts, nuts, washers, and brackets matched to your belt set.

Grade 5 vs Grade 8: Which Do You Need?

Specification Grade 5 Grade 8
Tensile Strength 120,000 psi 150,000 psi
Yield Strength 92,000 psi 130,000 psi
Shear Behavior Flexes and bends before failure Higher tensile, can fracture in single shear
Best For Most seat belt mounting applications High-stress anchor points and heavy-duty use
✅

Certified Quality

Every component is engineered for seat belt use and certified to meet FMVSS 209 requirements.
📦

Complete Kits

Hardware kits include bolts, nuts, washers, and brackets so you have everything for the job.
💬

Expert Support

Not sure which hardware you need? Our team can help you select the right components.

Common Questions

1Which grade do I need, 5 or 8?+
Both grades meet FMVSS 209 requirements for seat belt attachment. Grade 5 is the standard choice for most installations because it flexes under extreme load rather than fracturing. Grade 8 offers higher tensile strength and is often preferred for heavy-duty or high-stress mounting points. If you are unsure, Grade 5 is a safe default for typical passenger vehicle applications.
2Will this hardware fit my vehicle?+
Our hardware is universal and designed to work across a wide range of vehicles, including classic cars, trucks, vans, and custom builds. The 7/16" x 20 fine thread is the standard specified by FMVSS 209 for seat belt attachment. If your vehicle has existing factory anchor points, the hardware will typically thread directly in. For vehicles without anchor points, backing plates and threaded mounting plates provide a secure mounting solution.
3What exactly comes in a hardware kit?+
Each hardware kit includes the bolts, nuts, washers, and brackets needed to install your replacement seat belts. The exact contents vary by kit, but every kit is assembled to provide a complete mounting solution for a standard belt installation. You can also add hardware when purchasing your seat belts to ensure you receive the correct components matched to your specific belt set.
4Can I use regular hardware store bolts?+
We strongly advise against it. General-purpose bolts are not engineered for the specific load, shear, and fatigue conditions of a seat belt anchor. FMVSS 209 specifies exact thread dimensions and material grades for a reason. Using non-certified hardware can compromise the integrity of the entire restraint system. Our hardware is purpose-built and certified for seat belt use.

Buying Belts and Hardware Together?

Add hardware when purchasing your seat belts and we will match the correct components to your belt set. No guesswork, no returns, no second orders.