Serrated Lock Washer, with external teeth, DIN 6798-A. A Toothed Lock Washer, also known as a Serrated Washer or Star Washer, has serrations that extend radially inward and/or outward to bite into the bearing surface. This type of washer is especially effective as a Lock Washer when used with a soft substrate, such as aluminium or plastic but

The takeaway from today's lesson is that the DINs 127, 128, 137, 6796, 6797, 6798 and 7980 do not have ISO counterparts or replacements and all of them except for DIN 6796, have had their standards withdrawn, as only DIN 6796 is considered to have any real application, whereas the others are considered ineffective.

DIN 6798 V Countersunk Serrated Lock Washers have twisted tab type serrations around their periphery and a 90° conical bearing surface. They are designed for countersunk holes and are used with metric flat and oval head screws (inch series screws have an 82° head angle so they aren't compatible).

Description, Serrated lock washer DIN 6798 - J 1.7 - FSt. Part number, DIN 6798 - J d1 1.7 - FSt. Material, Spring steel 

To keep 90° countersunk screws from loosening in vibration applications, the teeth on these washers bite further into the screw head and joint than standard external-tooth lock washers for

DIN 6798 (A) - 1988 Serrated Lock Washers—Type A,With External Teeth ; d · min ; t ; Number of Teeth, min ; per 1000 units≈kg ; For Nominal Thread Diameter 

DIN 6798 quantity. Add to cart. Add to quote. SKU: N/A Category: WASHER. Additional information Reviews (0) Additional information. color: ZINC-PLATED. SIZE: M5, M6, M8, M10, M12. UNIT: KG, PIECES. Reviews There are no reviews

DIN 6798 A are external toothed washers that can provide excellent locking. They are particularly effective on flat bearing surfaces that are larger than their outer diameter. ® Sizes Ø from 3 to 16 mm feature overlapped teeth to ensure an excellent clamping. Internal hole of sizes 6, 8x14, 12 and 16 features a restricted tolerance compared

Size Type A/J Type V M1.6 0.020 M2 0.030 0.025 M2.5 0.045 0.030

Serrated Lock Washer Metric A4 Stainless Steel External Teeth DIN 6798 A | Cromwell Tools.

c) The nominal sizes (bore diameters) 12,5 mm, 14,5 mm and 16,5 mm have been replaced by 13 mm, 15 mm and 17 mm. d) In the technical delivery conditions, materials CuSn8 and X 12 CrNi 17 7 are no longer specified. e) The hardness specification has been brought into line with that specified in DIN 6798. f) The standard has been editorially revised.