

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION C703509 is a 3/4-16 hex head cap screw designed for high-strength fastening applications across industrial, mechanical, and structural assemblies. This screw features a Grade 8 steel construction with a fully threaded shank, measuring 2 inches under the head on a 3/4-16 Unified Fine Thread (UNF) pitch. The bright uncoated finish leaves the steel bare, making it suitable for environments where surface treatments are applied after installation or where bare metal contact is acceptable. It conforms to ASME B18.2.1, the American standard governing dimensions and tolerances for hex head fasteners. Sold in packages of 25, this screw is a standard choice for mechanics, millwrights, and maintenance professionals working in inch-dimensioned systems.
This fastener is used wherever high tensile strength and fine thread engagement are required. The UNF thread pitch provides greater resistance to loosening under vibration compared to coarse thread equivalents, making it common in automotive, heavy equipment, HVAC structural frames, and precision machinery. The 3/4-16 thread size is well-suited for medium-to-large assemblies with close-tolerance tapped holes. The Grade 8 rating indicates a minimum tensile strength of 150,000 psi, appropriate for load-bearing and torque-critical joints. ASME B18.2.1 compliance ensures dimensional interchangeability with hardware from other manufacturers.
Designed as an OEM-style replacement or service fastener for assemblies requiring a 3/4-16 UNF, fully threaded hex head cap screw with Grade 8 strength rating and ASME B18.2.1 compliance.
Installation should be performed by a qualified mechanic or millwright familiar with inch-series fastener torque specifications for Grade 8 hardware. Always verify thread engagement depth in the mating tapped hole before applying final torque. Do not use impact tools to drive Grade 8 fasteners to final torque without a calibrated torque stick or wrench. Ensure mating surfaces are clean and free of debris to achieve accurate clamp load.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!