Silver Cone Shape Tooth Locking Washers,304 Stainless Steel Conical Spring Washers with External Tooth Star for Screws and Bolts,Quick Speed Locking Fastener(M4,50pcs)

USAGE INSTRUCTIONS: 1. Preparation: First, ensure you have the required conical serrated washers and the corresponding nuts or bolts ready. 2. Positioning the Washer: Place the conical serrated washer beneath the nut or bolt, ensuring the serrated teeth face the same direction as the nut or bolt head. This ensures the washer deforms correctly under pressure to generate the required friction. 3. Gradual Tightening: Using appropriate tools, gradually rotate the nut or bolt to contact the washer and base material, applying pressure. Avoid sudden, excessive force during this process; instead, apply torque incrementally to avoid damaging to the washer or bolt. 4. Verify locking effectiveness: Once the nut or bolt is tightened, inspect the washer's locking performance. Ensure the washer has deformed sufficiently and generates adequate friction against the base material to achieve reliable locking. Note: Hammering or cutting the washer will compromise its locking effectiveness; avoid these methods during installation. Additionally, avoid applying excessive or insufficient torque during installation, as this may compromise the washer's locking performance. Furthermore, reuse of washers is not recommended, as their locking effectiveness may diminish after multiple uses. Ensure proper steps and methods are followed when using tapered serrated washers to guarantee effective locking and extend their service life.

• PACKAGE INCLUDED: Each package contains 50 pairs of conical external tooth star washers.
• SIZE:M4.
• MATERIAL: made of quality 304 stainless steel, offering excellent corrosion resistance, durability, and rust resistance.
• FEATURE: The locking washer applies spring force between the fastener head and the base, causing the washer and base to adhere tightly. This generates greater friction and rotational resistance, resulting in superior locking performance.
• APPLICATION: Widely used in various screw fastening applications, it is an ideal choice for electrical connections in household appliances, commercial appliances, automobiles, and marine vessels.