Thread Length:     0.468 in.

Fastener Length:     3.906 in.

Head Style:     Hex

Head Height:     Between 0.140 in. & 0.172 in.

Width Between Flats:     Between 0.428 in. & 0.440 in.

Thread Diameter:     0.250 in.

Thready Qty:    28

Material:     Steel