Section D

Wedge Lockwashers Rondelles de sécurité

Inch Pouce

Bolt it together and it stays that way!

D

Disc-Lock self-locking washers are hardened steel washers that mate together against a series of inclined cams. The back side has ridges that will bite into the joint material and the nut or capscrew. As one of the Disc-Lock washers attempts to rotate with the nut or capscrew, the preload is actually increased, further locking the nut. When removal of the fastener is neces sary, approximately 50% more torque is required for loosening than tightening. The Disc-Lock has been developed in America, and is virtually vibration-proof, according to U.S. Military specifications.

MAKE THIS A PERMANENT ASSEMBLY

D

BY THE ADDITION OF DISC-LOCK

When you bolt pieces together, it’s a good feeling to know they will stay that way…

INCH SPECIFICATIONS (with approximate mm bolt size)

A4 (316) Stainless

For Bolt Size

PKG QTY. Pairs

Inch Dimensions

Cam Mating Surface

* EE

Steel

Inches mm A C

677-810 677-811 677-812 677-813 677-814 677-815

3/16 5 .203 .401 .080 50 1/4 6 .262 .495 .129 50 5/16 8 .326 .628 .142 50 3/8 10 .409 .705 .160 50 1/2 12 .510 .937 .166 25 5/8 16 .651 1.247 .154 25

Outer Surface

TECHNICAL DATA

Hardened

For Bolt Size

PKG QTY. Pairs

Steel (Zinc Plated) Inches mm A C

Inch Dimensions

* EE

677-017 677-018 677-001

#6 3 .150 .340 .080 50 #8 4 .175 .340 .080 50 3/16 5 .203 .401 .080 50 1/4 6 .262 .495 .129 50 5/16 8 .326 .628 .142 50 3/8 10 .409 .705 .160 50 7/16 11 .450 .880 .153 25 1/2 12 .510 .937 .166 25 9/16 14 .572 1.128 .175 25 5/8 16 .651 1.247 .154 25 3/4 20 .820 1.381 .242 20 7/8 22 .883 1.470 .268 20 1 25 1.015 1.626 .240 20 1-1/4 32 1.275 1.875 .265 10 1-1/8 28 1.140 1.715 .240 10 1-3/8 36 1.430 2.196 .230 10 1-1/2 38 1.523 2.196 .230 10

677-B06-1M 677-B07-1X 677-B05-1W 677-B09-1P 677-B10-1A 677-B11-1P 677-B12-1Y 677-B13-1C 677-B14-1N 677-B15-1T 677-B16-1K 677-B17-1W 677-B18-1M 677-B19-1X

Disc-Lock washers are steel case hardened to RC55 and zinc plated. Note: Disc-Lock washers are priced by the pair. A package of 50 (pairs) contains 100 identical pieces.

CATALOG 14

* Weight and thickness of pairs will vary slightly with gauge of metal.

D38

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