Bs 328 drill sizes are defined as shown in the drill size chart below.
Roll pin drill sizes.
Made of 1070 carbon spring steel hardened to rockwell 45 50 tempered and oiled they can be doubled up for heavy duty applications.
The drill size chart below gives fractional sizes and their metric conversions up to 1 inch.
Pins that meet specifications for iso 8752 formerly din 1481 or iso 13337 formerly din 7346 adhere to international standards for pin dimensions.
A 1 8 roll pin will fit tightly in a 1 8 hole.
Passivated pins offer added protection against corrosion and oxidation.
Choose from our selection of roll pins including slotted spring pins coiled spring pins and more.
Recommended b m pintool a b c recommended hole size wall thickness.
Spring roll pins these pins feature hollow cylinders slit longitudinally permitting compression during insertion.
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.
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.
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.
Roll pins are sized by the diameter of the required hole i e.
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.
Steel pins are strong and wear resistant.
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.