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The HILLMAN FASTENERS 190033 is a 1/4-20 x 2-1/2 inch hex bolt made from low carbon steel with a coarse thread pattern. Each package contains 100 bolts, making it a practical quantity for job-site stock or shop inventory. The 1/4-20 designation indicates a 1/4-inch nominal diameter with 20 threads per inch, a standard Unified Coarse (UNC) thread specification. Low carbon steel construction provides adequate tensile strength for general fastening applications in structural, mechanical, and utility installations. Licensed tradespeople across multiple disciplines keep these bolts on hand for routine assembly and equipment mounting tasks.
These hex bolts are suited for a wide range of residential and light commercial applications. Electricians, plumbers, HVAC technicians, and general contractors use 1/4-20 fasteners when securing brackets, equipment bases, junction boxes, conduit supports, and mechanical assemblies to structural members. The coarse thread pattern allows for faster installation and is more forgiving in field conditions where thread engagement is a concern. The 100-count pack is well suited for shops, service vans, or project stockrooms that require a reliable quantity of this common fastener size on hand.
Designed as a general-purpose 1/4-20 UNC hex bolt compatible with any application requiring a 1/4-20 coarse thread fastener with a 2-1/2 inch length and standard hex head.
Install using an appropriate wrench or socket driver sized for a standard 1/4-inch hex bolt head. Ensure mating threads are clean and free of debris before fastening. Apply torque appropriate to the base material and application per project specifications or applicable code requirements. Low carbon steel fasteners are not intended for use in highly corrosive environments without additional corrosion protection such as plating or coating.
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