Product name: American cross recessed countersunk screw

Implementation standard: American standard ASME/ANSI B 18.6.3 (Table 18)

Product Overview: American standard cross countersunk screws are also called American cross flat head screws and cross slot countersunk screws. They are mainly used to connect product parts with reserved internal threaded holes. 1. In the standard, it is similar to the national standard GB819, the international standard ISO 7046, etc., but there is a big difference in the thread. The thread follows the American standard UNC and UNF standards. 2. The countersunk angle of the American standard is also different from that of the metric system. The normal angle of GB819 is in the range of 90°-92°, while the countersunk angle of the American standard is between 80-85°, so you should also pay attention to the reservation of the inner hole.

Product materials: Carbon steel (1008, 1022, 10B21, 35K, 45K), alloy steel (10B33, 40Cr, SCM435), B7, B7M, A320 L7/L7M, etc.

Product grade: US grade 2, US grade 5, US grade 8, US grade 10, grade 12.9, etc.

Product surface: blackening, blue-white zinc, colored zinc, black zinc, zinc-nickel alloy, hot-dip galvanizing, hot-dip galvanizing, geomet, Dacromet, electrophoresis, Teflon, baking varnish, anti-loosening glue and other customer-specified surface treatments

Product diameter: 1#-56, 2#-56 teeth, 4#-40 teeth, 6#-32 teeth, 8#-32 teeth, 10#-24 teeth, /12#-24 teeth, 1/4-20 teeth, 5/16-18 teeth, 3/8-16 teeth, 7/16-14 teeth, 1/2-13 teeth, 9/16-12 teeth, 5/8-11 teeth, 3/4-10 teeth

Product length: 1/4 inch - 20 inches length available for selection and customization

• Product size

Size unit:inch