US Fasteners Screws with large threads for use in wood. Screws with large threads for use in sheet metal sometimes also used in plastic, fiberglass, or wood. Program Vir Trou Onthaal. Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.

Specifies the fundamental deviations, tolerances and limits of size for tolerance classes 4H, 5H, 6H and 7H for internal threads and 4h, 6g, and 8g for external. ISO Metric Theads. Gauges for testing ISO metric screw threads to the latest BS Standards 3643:2007 and BS 919:Pt 3:2007. Kenmore Chest Freezer Model 19502 Manual. BS 3643 comprises two parts. Part 1 provides information and data on the basic principles, and. Purchase your copy of BS 3643-2:1981 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available online in electronic and. Dec 17, 1998 The ISO metric screw threads are the world-wide most commonly used type of general-purpose screw thread. They were one of.