Sealey AB030SN Steel Nut Assortment 320pc 1/4"-1/2"UNC

1/4" TO 1/2" - 1/4"UNC (x120), 5/16"UNC (x120), 3/8"UNC (x50), 1/2"UNC (x30).
STORAGE BOX - Supplied in a partitioned box.
COARSE THREAD - Imperial UNC nuts designed for use with UNC Bolts and studs.
HIGH QUALITY - Manufactured to DIN 934.