Value Collection 643003PS M5 Hex Cap Screw Grade 8.8

Product Description

The VALUE COLLECTION 643003PS is a metric hex head cap screw designed for general mechanical fastening applications in industrial, construction, and fabrication environments. This fully threaded fastener measures M5 x 0.80 thread pitch with a 20 mm length under the head and an 8 mm hex drive. Manufactured from Grade 8.8 steel with a bright uncoated finish, it delivers a reliable tensile strength profile suited to medium-duty bolted joints. Installation requires a standard 8 mm hex wrench or socket. Licensed tradespeople and fabricators rely on this fastener where metric dimensioning and DIN or ISO conformance are specified on engineering drawings.

This screw is suited for metric-standard assemblies in light industrial machinery, structural brackets, enclosures, and equipment frames. The fully threaded body allows uniform clamping load along the entire shank length, making it appropriate for through-bolted connections and thin-material joints. It conforms to DIN 933 and ISO 4017 standards, which define thread form, head geometry, and mechanical properties for metric hex cap screws. Minimum order quantity is 100 pieces; package quantity is 1.

Key Features

• M5 x 0.80 thread pitch, 20 mm length under head — standard metric sizing
• Grade 8.8 steel construction — minimum 800 MPa tensile strength class
• Fully threaded shank for maximum clamping engagement on thin materials
• 8 mm hex drive — compatible with standard metric wrenches and sockets
• Bright uncoated finish — suitable for dry or indoor service environments
• Conforms to DIN 933 and ISO 4017 dimensional and mechanical standards

Compatibility

Designed as a standard DIN 933 and ISO 4017 compliant M5 x 0.80 hex head cap screw, compatible with any metric-threaded M5 x 0.80 tapped hole or nut conforming to the same thread standard.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using an 8 mm open-end wrench, box wrench, or socket driver. Verify that mating threads are clean and free of debris before driving the fastener. Apply thread-locking compound or hardened washers as required by the joint specification. Grade 8.8 fasteners should not be welded without engineering review, as heat exposure can alter mechanical properties.