Value Collection 451223BR Hex Cap Screw 3/4-10x12 Grade 8

Product Description

The VALUE COLLECTION 451223BR is a 3/4-10 UNC hex head cap screw measuring 12 inches under the head, manufactured from Grade 8 steel with a bright, uncoated finish. Grade 8 steel delivers high tensile strength suited for demanding structural and mechanical fastening applications. The partial threading leaves a smooth shank section near the head, which is standard practice for bolted connections requiring shear strength and precise alignment. This fastener conforms to ASME B18.2.1 dimensional standards and is driven with a 1-1/8-inch hex key or wrench. It is installed by millwrights, ironworkers, maintenance mechanics, and general contractors across a wide range of industrial and construction settings.

This cap screw is appropriate for heavy-duty bolted assemblies in both structural and mechanical applications where high-strength fasteners are required. Typical uses include equipment mounting, steel-to-steel connections, machinery frames, and fabricated structural joints. The large 3/4-10 coarse thread profile provides good resistance to vibration loosening and is compatible with standard 3/4-10 UNC tapped holes and nuts. Its uncoated finish is suited for indoor or protected environments or for applications where a specific coating will be applied in the field.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 3/4-10 UNC coarse thread, partially threaded for shear-load applications
• 12-inch length under head accommodates deep through-bolt and long-reach fastening
• Bright uncoated finish for use as-supplied or with field-applied coatings
• Conforms to ASME B18.2.1 for consistent dimensional accuracy
• 1-1/8-inch hex drive compatible with standard open-end, box, and impact wrenches

Compatibility

Designed as a standard ASME B18.2.1 replacement or new-install fastener for any 3/4-10 UNC tapped hole or nut application requiring a Grade 8 hex head cap screw.

Installation Notes

Installation is performed by qualified mechanics, millwrights, or ironworkers using a 1-1/8-inch wrench or impact driver. Torque to the assembly specification provided by the equipment or structure engineer of record — do not assume a torque value from thread size alone, as joint design, lubrication, and load requirements all affect the target value. Apply thread lubricant or thread-locking compound only when specified by the assembly procedure. Inspect threads on both the fastener and the mating nut or tapped hole before installation to ensure they are clean and undamaged.