{"id":4130,"date":"2025-07-03T01:58:11","date_gmt":"2025-07-03T08:58:11","guid":{"rendered":"https:\/\/guxiangjs.com\/?post_type=product&p=4130"},"modified":"2025-07-03T01:58:11","modified_gmt":"2025-07-03T08:58:11","slug":"din6797-stainless-steel-304-18-8-retaining-washer-internal-teeth-lock-washer-serrated-internal-design","status":"publish","type":"product","link":"https:\/\/guxiangjs.com\/zh\/din6797-stainless-steel-304-18-8-retaining-washer-internal-teeth-lock-washer-serrated-internal-design\/","title":{"rendered":"DIN6797 Stainless Steel 304 18-8 Retaining Washer Internal Teeth Lock Washer-Serrated Internal Design"},"content":{"rendered":"
    \n
  1. High-Grip, Corrosion-Proof Locking Performance
    \n\u2022 Stamped from 18-8 \/ 304 austenitic stainless steel hardened to \u2248 220 HV, the washer\u2019s sharply formed internal teeth generate prevailing torque that counters vibration-induced loosening without damaging the male threads.
    \n\u2022 Continuous chromium-oxide passivation film provides lasting immunity to salt spray, food-grade detergents, mild acids and outdoor moisture from \u2212200 \u00b0C to +400 \u00b0C, eliminating the red-rust risk common to plated carbon-steel alternatives.
    \n\u2022 Tooth geometry\u201460 \u00b0 flank angle and 0.20\u20130.35 mm height (M3\u2013M12 range)\u2014delivers up to 20 % higher break-loose torque than equal-diameter split or wave washers while adding only 0.3\u20130.8 mm to clamp stack height.
    \n\u2022 Meets locking requirements of DIN 6797 Type J (internal-tooth), enabling repeated reuse with no measurable loss of bite or galling on mating surfaces.<\/li>\n
  2. Versatile, Cross-Industry Application Spectrum
    \n\u2022 Electronics & Precision Devices: Secures PCB standoffs, sensor modules and miniature gearboxes where low profile, electrical grounding through tooth contact and non-magnetic material are essential.
    \n\u2022 Medical, Food & Pharmaceutical Equipment: Stainless construction tolerates aggressive wash-downs and autoclave cycles on mixer guards, sanitary pipe clamps and lab-instrument panels.
    \n\u2022 Transportation & Lightweight Structures: Locks dashboard trim, lighting brackets and battery clamps in passenger vehicles, e-bikes and marine craft exposed to vibration and humidity.
    \n\u2022 Machinery, Robotics & Automation: Maintains clamp integrity on limit-switch plates, cable glands and sensor mounts during high-cycle duty and rapid axis reversals.<\/li>\n
  3. Installer-Friendly, Time-Saving Handling
    \n\u2022 Symmetric internal serrations self-center under screw heads, avoiding orientation concerns and simplifying blind or overhead assembly\u2014even with gloves.
    \n\u2022 Flat-lay geometry prevents wobble on magnetic sockets and pick-and-place nozzles, boosting automated feed reliability and manual throughput.
    \n\u2022 Supplied bulk-packed, in resealable field pouches or on tape-and-reel strands for seamless integration with maintenance kits, bench stations and SMT lines.
    \n\u2022 Optional laser-etched size code (from M4 upward) enables quick visual sorting without calipers, reducing kitting errors on mixed-size work cells.<\/li>\n
  4. Verified Quality & Long-Term Durability
    \n\u2022 100 % optical inspection verifies tooth height \u00b1 0.02 mm, OD\/ID concentricity \u2264 0.05 mm TIR and hardness per ISO 3506-1; Cp\/Cpk data archived for ISO 9001 and IATF 16949 audits.
    \n\u2022 Stress-relief tempering after forming eliminates residual stresses, preserving high spring modulus for enduring bite through multiple re-torque cycles.
    \n\u2022 Electropolished variants achieve Ra \u2264 0.4 \u00b5m for hygienic or decorative finishes without altering dimensional tolerances or locking performance.
    \n\u2022 QR-coded packaging links each washer lot to melt chemistry, passivation batch and inspection record, ensuring traceability for aerospace, medical-device and critical-infrastructure projects.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

    High-Grip, Corrosion-Proof Locking Performance \u2022 Stamped from 18-8 \/ 304 austenitic stainless steel hardened to \u2248 220 HV, the washer\u2019s sharply formed internal teeth generate prevailing torque that counters vibration-induced loosening without damaging the male threads. \u2022 Continuous chromium-oxide passivation film provides lasting immunity to salt spray, food-grade detergents, mild acids and outdoor moisture from […]<\/p>","protected":false},"featured_media":4131,"template":"","meta":[],"product_brand":[],"product_cat":[176],"product_tag":[],"class_list":["post-4130","product","type-product","status-publish","has-post-thumbnail","product_cat-washer","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product\/4130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/media\/4131"}],"wp:attachment":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/media?parent=4130"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_brand?post=4130"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_cat?post=4130"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_tag?post=4130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}