Roll Pin Drill Sizes

Recommended b m pintool a b c recommended hole size wall thickness.

Roll pin drill sizes.

In hardened steel parts the hole should be 005 to 008mm 5 8 microns smaller than the dowel. Made of 1070 carbon spring steel hardened to rockwell 45 50 tempered and oiled they can be doubled up for heavy duty applications. 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.

Roll pins are sized by the diameter of the required hole i e. Spring pins roll pins split pins size table ansi asme b18 8 2 hardware ansi menu the following is dimensional and general data for spring pins recognized as american national standard which are widely used in general industrial applications per. Passivated pins offer added protection against corrosion and oxidation. Spring roll pins these pins feature hollow cylinders slit longitudinally permitting compression during insertion.

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 relationship between the diameter of the pin and the diameter of the hole must take into account the ductility of the dowel and the hole material and will vary more accordingly to this factor than according to the size of the dowel itself. Steel pins are strong and wear resistant. Bs 328 drill sizes are defined as shown in the drill size chart below.

Choose from our selection of roll pins including slotted spring pins coiled spring pins and more. The drill size chart below gives fractional sizes and their metric conversions up to 1 inch. Designed to replace taper pins straight pins and set screws they will also serve as a rivet dowel hinge pin or cotter pin in many applications. Pins that meet specifications for iso 8752 formerly din 1481 or iso 13337 formerly din 7346 adhere to international standards for pin dimensions.