Description
Overview:
These 1/4 inch x 1 inch UNC zinc plated 8.8 high tensile setscrews are fully threaded hex head bolts designed for dependable fastening in construction, plant, and garden machinery. Made from grade 8.8 carbon steel with a bright zinc plated finish, they combine strength with good corrosion resistance for indoor and outdoor use. The 1/4 inch (6.35 mm) major diameter and 1 inch (25.4 mm) length suit a wide range of assemblies where a secure clamp is required. The coarse UNC thread form (1/4-20) provides robust engagement in metals, plastics, and timber when paired with matching UNC nuts and washers. Supplied in a bulk pack of 200 for workshop, site, and maintenance tasks where consistency and availability matter.
Key Features:
- Diameter: 1/4 inch (6.35 mm); Length: 1 inch (25.4 mm) for common repair and fabrication jobs
- UNC coarse thread, 1/4-20, for reliable assembly and easy starting
- Fully threaded shank for maximum grip range and versatile clamping
- Grade 8.8 high tensile steel for strong, durable joints
- Zinc plated (BZP) finish to resist rust in general environments
- Hex head for use with standard spanners and sockets
- Supplied in a cost-effective 200 pack for stock control and repeat use
- Suitable for internal or external applications where BZP is appropriate
- Compatible with standard 1/4 inch UNC nuts, washers, and tapped holes
- Manufactured to ANSI B18.2.1:1965 dimensional standards for consistent fit
Typical Applications:
General fastening on frames, brackets, guards, engines, pumps, and fixtures; repairs and assembly on compactors, generators, lawn tractors, mowers, strimmers, compressors, trailers, and workshop jigs; securing panels, housings, and accessories to metal or timber using matching UNC hardware.
Also known as:
Set screws, fully threaded hex bolts, UNC bolts, machine bolts, BZP set screws, 1/4-20 bolts, carbon steel fasteners, high tensile fixings, hex cap screws (fully threaded), engineering fasteners.
Alternate Part Numbers:
903 0171, 9030171
Product Specifications
| L&S Part No. | 903 0171 |
|---|---|
| Unit of Sale | Pack of 200 |
| Size | 1/4" UNC x 1" |
| Key Features | - 1/4 inch diameter, 1 inch length for versatile use - UNC 1/4-20 coarse thread for reliable assembly - Grade 8.8 high tensile steel for strong joints - Zinc plated finish resists rust - Supplied in bulk pack of 200 for convenience |
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