Roll Pin Drill Sizes

Choose from our selection of roll pins including slotted spring pins coiled spring pins and more.

Roll pin drill sizes.

Fraction of an inch inch mm fraction of an inch inch mm fraction of an inch inch mm 1 64 0 0156 0 3969 23 64 0 3594 9 1281 45 64 0 7031 17 8594 1 32 0 0313 0 7938 3 8 0 37 50 9 5250 23 32 0 7188 18 2563. Spring roll pins these pins feature hollow cylinders slit longitudinally permitting compression during insertion. Made of 1070 carbon spring steel hardened to rockwell 45 50 tempered and oiled they can be doubled up for heavy duty applications. In hardened steel parts the hole should be 005 to 008mm 5 8 microns smaller than the dowel.

Recommended b m pintool a b c recommended hole size wall thickness. Nominal pin dia decimal nominal pin dia fraction max go ring gage d max nom min max. 18 8 stainless steel pins offer a balance of strength and corrosion resistance. A 1 8 roll pin will fit tightly in a 1 8 hole.

Steel pins are strong and wear resistant. Bs 328 drill sizes are defined as shown in the drill size chart below. Roll pins are sized by the diameter of the required hole i e. Pins that meet specifications for iso 8752 formerly din 1481 or iso 13337 formerly din 7346 adhere to international standards for pin dimensions.

In stock and ready to ship. There are a variety of standards used to define drill sizes the most common one in the uk is the british standard bs 328 set which includes twist drill bit sizes between 0 2 mm and 25 mm. The drill size chart below gives fractional sizes and their metric conversions up to 1 inch. Passivated pins offer added protection against corrosion and oxidation.