Description
Hex Bolt M8 x 40 mm, Mild Steel — BOLTON SKU 68976.
About the Hex Bolt M8 x 40 mm, Mild
This Hex Bolt M8 x 40 mm carries an ISO metric M8 coarse thread of 1.25 mm pitch on a 40 mm nominal length, with an external hexagon head and a mild (low-carbon) steel body. It is the sibling of the longer M8 x 70 bolt in this range, sharing thread and material and differing only in grip capability. The external hexagon accepts spanners, sockets and impact tooling, and mild steel gives an economical, ductile fastener for joints without a designed property-class requirement. A 40 mm length is one of the most commonly stocked M8 sizes because it covers the bulk of everyday two-plate and bracket joints once washers and nut height are allowed for. As an ungraded bolt it is intended for general assembly rather than load-certified structural connections.
Key specifications
| Thread | M8, ISO metric coarse (1.25 mm pitch) |
|---|---|
| Nominal length | 40 mm |
| Head | External hexagon |
| Material | Mild (low-carbon) steel |
Typical applications
Typical uses for M8 x 40 mild steel bolts are machine guards, junction boxes, shelf brackets, light frames and jigs — joints of roughly 20-30 mm total thickness with a nut and washers. Where corrosion is a concern outdoors, request a plated or stainless alternative in the RFQ notes.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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