1/2-20 UNF x 4.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking Marine Stainless Steel (A4) Description
The 1/2-20 UNF x 4.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking Marine Stainless Steel (A4) has the following features:
1/2-20 Thread Size (T)
ANSI B18.2.1 Manufacturing Standard
4.1/2 inch Length (L)
1.250-1.500 inch Thread Length (E)
0.323 inch Hexagon Length (H)
Marine Stainless Steel (A4) Material
20 TPI Pitch
Marine Stainless Steel (A4) Screw Material Specification
Thread Locking Finish
+/-0.13mm General Tolerance
Imperial Metric or Imperial?
0.75 inch Hexagon Width A/F (J)
Discover more about the Imperial Plain Hexagon Bolts range
Imperial Plain Hexagon Bolts are functionally identical to Accu's standard range of Hexagon Bolts. This type of bolt features unthreaded portion below the head, which serves as an unthreaded dowel to strengthen the overall construction of the bolt. The unthreaded section of a Plain Hexagon Bolt makes the bolt more resistant to shear forces.
Plain Hexagon Bolts are available in imperial thread sizes of between 1/4 inch and 1 inch. Lengths range from 1 inch to 20 inch.