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HILLMAN M8-1.25 mm D X 40 mm L Heat Treated Steel Hex Head Cap Screw
HILLMAN M8-1.25 mm D X 40 mm L Heat Treated Steel Hex Head Cap Screw

HILLMAN M8-1.25 mm D X 40 mm L Heat Treated Steel Hex Head Cap Screw

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Hillman M8 x 40 mm Heat Treated Hex Head Cap Screw is engineered for strength, reliability, and precise performance in metric assemblies. Crafted from robust steel and subjected to…

Hillman MPN 916286 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $19.99. Our online price is $21.99.
$21.99
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About Product Overview

Hillman M8 x 40 mm Heat Treated Hex Head Cap Screw is engineered for strength, reliability, and precise performance in metric assemblies. Crafted from robust steel and subjected to heat treatment, this fastener delivers elevated hardness and a long service life in demanding projects.

  • Material and treatment: heat-treated steel that enhances hardness and wear resistance, helping bolts resist deformation under load.
  • Grade: 8.8, delivering high tensile strength for secure clamping in structural, mechanical, and equipment installations.
  • Size and threading: coarse M8 x 1.25 mm thread for quick, confident engagement in tapped holes or with compatible nuts, ideal for rapid assembly and disassembly.
  • Head and drive: hex head designed for common wrenches and sockets, providing solid torque transfer and straightforward installation—even in tight or hard-to-reach spaces.
  • Dimensions: 40 mm overall length with a standard hex head to fit a wide range of projects and components.
  • Packaging: 50-piece box, giving you ample supply for bulk jobs, shop inventories, or ongoing maintenance kits.
  • Applications: perfect for machinery mounting, metal or wooden framing, furniture assembly, automotive brackets, and other metric fastener needs where a strong, durable screw is required.
  • Installation tips: pair with a compatible nut or tapped hole and a washer for load distribution; avoid over-tightening to protect threads and ensure consistent clamping.

This screw stands out by merging Hillman’s trusted engineering with a heat-treated Grade 8.8 steel core, delivering ready-to-use strength that resists loosening under vibration and heavy use. It’s an excellent choice for professionals and serious DIYers who demand predictable performance from a metric fastener.

Ideal for: metal fabrication shops, carpentry and framing projects, equipment mounts, and any build requiring a reliable M8 fastener. If you’re stocking up on metric hardware, this 50-piece box of Hillman M8 x 40 mm hex head cap screws offers a ready-for-use solution that blends strength, durability, and practical design.

The Details Specifications

Brand Hillman
SKU 5167861
UPC 008236145724
Unit 0
Case Pack Quantity 6 per case
Retail Unit Quantity 1
Unit of Measure 50 BX
Dimensions (L × W × H) 4 × 5 × 2
Weight 4 lbs
Cubic Feet 0.03387 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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