Washer

DTIs are a function of induced tension. As a fastener assembly is tightened, the arch-like protrusions are compressed and the change in distance between the base of the protrusions of the DTI washer and the protrusion apex, correlates to a value of tensile force induced into the fastener. This distance can be verified by insertion of a tapered feeler gage between the protrusions to the bolt shank. The number of instances the bolt shank can be reached by the feeler gage is then compared to either the results of a pre-installation verification procedure or the manufacturer's instructions.

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

WE CAN MANUFACTURE ANY TYPE OF TYPICAL FASTENERS AS PER CUSTOMER DRAWING AND SPECIFICATIONS.

Important Message for our Customers

It is requested to buy direct from the company or see the invoice or documentary evidence from the dealer to ensure that you are buying genuine products of TUFF. We come to know that some Traders are supplying TUFF BRAND products while manufacturing at their own using inferior quality raw materials.