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The VALUE COLLECTION 644274PS is a metric hex head cap screw designed for general mechanical assembly and structural fastening applications. Manufactured from Grade 8.8 steel with a bright uncoated finish, this fastener delivers reliable tensile strength in standard industrial and mechanical installations. The screw features partial threading along the shank, conforming to DIN 931 and ISO 4014 standards. With an M20 x 2.50 mm thread size and a 200 mm length under head, it is suited for through-bolt applications requiring a longer grip length. Installation requires a 30 mm hex wrench or socket. Mechanics, millwrights, and maintenance technicians are the typical installers for fasteners of this specification.
This cap screw is appropriate for use in machinery assembly, structural steel connections, equipment mounting, and industrial maintenance applications where metric fasteners conforming to DIN 931 or ISO 4014 are specified. The partially threaded shank allows for a clean bearing surface in bolted joints, making it a practical choice in flanged or clamped assemblies. It is suitable for both shop fabrication and field service environments where Grade 8.8 metric hardware is the specified standard.
Designed as a standard DIN 931 and ISO 4014 compliant metric hex head cap screw, suitable for use in any application specifying an M20 x 2.50 partially threaded hex bolt in Grade 8.8 steel.
Installation should be performed by a qualified mechanic or maintenance technician familiar with metric fastener torque specifications for Grade 8.8 hardware. Always consult the equipment manufacturer or applicable engineering specification for proper torque values before installation. Ensure mating threads are clean and free of debris before assembly. Do not substitute this fastener in applications requiring a higher-grade or coated fastener without verifying compatibility with the design specification.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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