Value Collection 99000 Hex Cap Screw 1/4-20 X 1/2 in Grade 8 100pk

Product Description

The VALUE COLLECTION 99000 is a 1/4-20 x 1/2-inch hex head cap screw manufactured from Grade 8 steel with a bright, uncoated finish. Grade 8 steel provides high tensile strength, making this fastener suitable for demanding mechanical and structural assembly work. The screw is fully threaded along its 1/2-inch length under the head, with a Unified National Coarse (UNC) thread form, and meets the ASME B18.2.1 dimensional standard. These are sold in packs of 100, making them practical for production runs, maintenance shops, and contractors who need reliable fasteners in quantity.

This fastener is used across a wide range of trade and industrial applications, including HVAC equipment assembly, mechanical panel mounting, structural bracketing, and general equipment service. The 1/4-20 UNC thread is one of the most common fastener sizes found in residential and light commercial mechanical equipment. Technicians in HVAC, plumbing, and electrical trades regularly use this size when securing components, mounting hardware, or assembling fabricated assemblies. The bright uncoated finish suits dry or protected interior installations where corrosion exposure is minimal.

Key Features

• Grade 8 steel construction for high tensile strength and durability in demanding fastening applications
• Fully threaded shank provides maximum thread engagement along the full 1/2-inch length under head
• 1/4-20 UNC thread form conforms to ASME B18.2.1 dimensional standard
• Bright uncoated finish suitable for interior and protected mechanical assemblies
• Pack quantity of 100 units reduces per-unit cost for high-volume use

Compatibility

Designed as a standard 1/4-20 UNC hex head cap screw per ASME B18.2.1, suitable for use wherever a 1/4-20 x 1/2-inch Grade 8 fully threaded hex cap screw is specified.

Installation Notes

Install using a standard hex wrench or socket driver sized to the 1/4-20 hex head. Torque to the fastener specification required by the equipment or assembly being serviced — do not exceed the rated capacity of the mating material. Power down and de-energize any equipment before fastening or removing hardware in electrical or mechanical enclosures. Follow applicable codes and equipment manufacturer instructions for proper fastener installation.