Description
Overview:
The M5 x 45 mm Alloy Steel Cap Screw is a high-strength fastener for demanding assemblies in construction, plant, agricultural and garden machinery, as well as general industrial equipment. Made from grade 12.9 high tensile alloy steel, it delivers a strong, reliable clamp in compact spaces where a traditional hex bolt head will not fit. The cylindrical cap head uses an internal hexagon socket for positive engagement with a hex key, helping you apply precise torque and maintain joint integrity under vibration and load. Supplied in a self-colour (uncoated) dark finish, it is well suited to dry, indoor and protected environments. Commonly used for mounting brackets, housings, guards and structural components, it supports confident fastening on repairs, rebuilds and new assemblies. Reference: 1150M470045; 139/3111Z.
Key Features:
- M5 x 45 mm socket head cap screw for compact, high-clamp joints
- Grade 12.9 alloy steel for outstanding tensile strength and fatigue resistance
- Internal hexagon drive for secure grip and reduced risk of cam-out
- Self-colour (uncoated) dark finish for accurate fit and thread engagement
- Consistent metric threading for smooth installation and repeatable torque
- Cylindrical head seats neatly in counterbored holes and tight spaces
- Ideal for high-stress assemblies subject to vibration and shock loads
- Compatible with standard metric hex keys and torque tools
- Reliable choice for equipment maintenance, upgrades and OEM-style repairs
- Suitable across construction plant, workshop fixtures and garden machinery
Typical Applications:
Fastening motors, gearboxes, pump housings, guards, fixtures, brackets and structural plates on compact machinery. Useful on mowers, compactors, generators, compressors, small engines, conveyors and workshop jigs where high clamp force and a small head profile are needed. Appropriate for indoor and sheltered environments; apply additional protection if used outdoors.
Also known as:
Allen bolt, SHCS (socket head cap screw), cap head bolt, internal hex machine screw, hex key bolt, socket cap bolt, metric cap screw, internal hex cap bolt.
Product Specifications
| L&S Part No. | 139/3111Z |
|---|---|
| OEM No. | 1150M470045 |
| Unit of Sale | 1 |
