A screw is a type of fastener, in some ways similar to a bolt , typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out. There are many screws for a variety of materials; those commonly fastened by screws include wood, sheet metal, and plastic.
| SR NO. | ITEM NAME(METRIC SERIES) | SIZE/ DIA RANGE | GRADE | MIN TENSILE STRENGTH | DIMENSIONAL STANDARDS | MECHANICAL SPEC | FINISH |
|---|---|---|---|---|---|---|---|
| 14 | HEX SCREW | M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M39,M42, M45, M48, M52, M56, M60,M64, M72, M76, M80, M90, M100 | GR.4 .6, 5.6, 8.8, 10.9,12.9 AS PER IS 1367 P-3 | (TENSILE STRENGTH) 830, 1040 | IS 1363 P-1, IS1364 P-1, DIN 931, DIN 934, ISO-4014,IS 1364 P-2, IS 1363 P-2, DIN 931 | IS 1367 PART 3, ISO 898-PART-1 | HOT DIP GAL-IS 1367 PT-13, IS:4759, BS EN:1461, ASTM A153, ASTM A123,BS EN ISO-10684,F2329,IS:4759-1979,BLACK PHOSPHATE-IS 1367 PT-12, ELECTRO GALVANIZED- IS:1367 PT-11, IS:1573, PTFE COATING-ASTM D:3294, ELECTRO PLATED COATING-ISO-4042-1999, ZINC ELECTROPLATED-BS 7371-3 OR BS EN ISO 4042, ISO-4043,F1136 |
| 15 | HEAVY HEX SCREW | M16, M20, M22, M24, M27, M30, M36 | GR.8S, 10S AS PER IS 1367 P-3 | (TENSILE STRENGTH) 830, 1040 | IS 3757 | IS 1367 PART 3 | HOT DIP GAL-IS 1367 PT-13, IS:4759, BS EN:1461, ASTM A153, ASTM A123,BS EN ISO-10684,F2329,IS:4759-1979,BLACK PHOSPHATE-IS 1367 PT-12, ELECTRO GALVANIZED- IS:1367 PT-11, IS:1573, PTFE COATING-ASTM D:3294, ELECTRO PLATED COATING-ISO-4042-1999, ZINC ELECTROPLATED-BS 7371-3 OR BS EN ISO 4042, ISO-4043,F1136 |
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