A-B101X142MA-AI BOLT-HEX.37-24X1.50 POne New Aftermarket Replacement Hex Bolt 3 8" 24 x 1 1 2" Fine Thread, Partially Threaded This hex head cap screw is a standard 3 8" 24 UNF (fine thread) x 1 1 2" partially threaded hex bolt suitable for use with a nut or in a tapped hole on agricultural equipment, construction machinery, lawn and garden equipment, and general machinery applications. The hexagonal head allows installation with a standard wrench or socket for high clamping force and