Zoro Select
Zoro Select Carriage Bolt M10-1.50 × 40 mm Class 4.6 Zinc Plated PK50
Pack of 50 zinc-plated steel carriage bolts, M10-1.50 × 40 mm, Class 4.6 tensile strength 58,000 psi, DIN 603
- TypeScrews & Bolts
- M10-1.50 coarse thread fits standard metric holes
- Class 4.6 steel rated to 58,000 psi tensile strength
- Zinc plating resists corrosion in damp environments
- Square neck locks into wood preventing bolt rotation
- Pack of 50 covers multiple fastening jobs
Zoro Select M10 Carriage Bolts
These metric carriage bolts have a 10 mm diameter with a 1.50 mm coarse thread pitch and a 40 mm overall length. They are supplied in a pack of 50 pieces and manufactured to DIN 603 from Class 4.6 steel with a zinc-plated finish. The round head measures 23.35 to 24.65 mm across and 5.38 mm high, with a square neck 10.58 mm wide and 6.60 mm deep to prevent rotation during tightening.
Class 4.6 tensile limit
The Class 4.6 grade provides a tensile strength of 58,000 psi, which sets the maximum clamping force these bolts can sustain before permanent deformation. This strength level suits general-purpose fastening in wood, metal brackets and light structural assemblies where high preload is not required. Over-torquing beyond the yield point will stretch the shank and reduce joint integrity, so torque values must respect the grade limit.
Square-neck anti-rotation
The square neck under the round head is the single feature that distinguishes a carriage bolt from a standard hex bolt. It locks into a square hole or bites into soft material so the bolt does not spin while the nut is tightened from the opposite side. If the mounting surface cannot accept a 10.58 mm square or the application requires tool-driven installation from the head side, a different fastener type is needed.
Highlights
- M10-1.50 coarse thread fits standard metric holes
- Class 4.6 steel rated to 58,000 psi tensile strength
- Zinc plating resists corrosion in damp environments
- Square neck locks into wood preventing bolt rotation
- Pack of 50 covers multiple fastening jobs
Specifications
| Brand | ZORO SELECT |
|---|---|
| Type | Screws & Bolts |
Questions about this item
Which pack size of M10-1.50 carriage bolts should I choose?
The box contains 50 pieces, each 40 mm long with a 1.50 mm coarse pitch; order one pack for 50 bolts or multiple packs for larger jobs.
What does the Class 4.6 rating mean when the bolt is installed?
It indicates a minimum tensile strength of 58,000 psi, so the fastener suits general-purpose structural joints but not high-stress critical connections.
How does the DIN 603 square neck affect installation?
The 10.58 mm square width by 6.60 mm height locks into a matching square hole, preventing rotation while you tighten the nut.
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