(a) This standard covers general and dimensional data pertinent to the various types of screw and captive washer assemblies, otherwise known as SEMS. The word SEMS is recognized in the United States as a generic term applicable to screw and washer assemblies. Also included in this standard are a...

This European Standard specifies the composition, property requirements and dimensional tolerances for copper alloy rod in the shape of circles, squares, hexagons or octagons, finally produced by drawing or extruding intended for general purposes. The sampling procedures and the methods of test ...

This standard specifies M 8 to M 80 X 6 T-·head bolts with double nib. They are designed for use in attaching components to foundations or similar structures by means of T-slots, such as are specified in DIN 649, where T-head bolts with square neck are considered adequate detachable fasteners.

This standard specifies dimensions of, and technical delivery conditions for, steel and nonferrous metal flat countersunk head rivets with nominal diameters from 3 to 5 mm.

This International Standard specifies the shape and basic dimensions of the hexalobular internal driving feature for bolts and screws, including the gauging method. The curvature of the contour of the hexalobular internal driving feature is defined by the gauges specified in Tables 3, 4 and 5. A...

This International Standard specifies requirements for non-electrolytically applied zinc flake coatings for steel fasteners. It applies to coatings: — with or without hexavalent chromium; — with or without top coat; — with or without lubricant (integral lubricant and/or subsequently added lubrica...