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High Strength Track Bolt 12x40 Excavator Bolts Stainless Steel Grade 4.8/6.8/8.8 19mm
| مكان المنشأ | فوجيان الصين |
| اسم العلامة التجارية | NF |
| إصدار الشهادات | CE, ISO9001: 2000 |
| رقم الموديل | 12 × 40 (19 ملم) |
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Our state-of-the-art independent inspection laboratory is equipped with cutting-edge testing equipment for comprehensive technical evaluation. We perform material chemical analysis, metallographic inspection, mechanical property testing, corrosion resistance evaluation, and precise measuring tool calibration. This rigorous testing ensures superior quality control and continuous product improvement.
Guided by our philosophy of "Customer-first, integrity-driven, and service-oriented," we are committed to excellence in the global fastener industry. Our robust quality assurance system, strict management protocols, advanced production capabilities, and innovative inspection methods position us as a leading manufacturer of high-performance fasteners.
| Thread Size | 3/4 | 7/8 | 1 | 1-1/8 | M10 |
|---|---|---|---|---|---|
| d | |||||
| PP | 10 | 9 | 8 | 7 | 1.5 |
| ds Min | 0.729 | 0.852 | 0.976 | 1.098 | 16 |
| ds Max | 0.768 | 0.895 | 1.022 | 1.149 | 15.73 |
| dk nominal | 1-9/32 | 1-31/64 | 2001/11/16 | 1-57/64 | 6 |
| dk Min | 1.2188 | 1.4219 | 1.625 | 1.8281 | 5.7 |
| dk Max | 1.3438 | 1.5469 | 1.75 | 1.9531 | 2.81 |
| k nominal | 15/32 | 35/64 | 5/8 | 45/64 | 2.56 |
| k Min | 0.4063 | 0.4844 | 0.5625 | 0.6406 | 2.4 |
| k Max | 0.5313 | 0.6094 | 0.6875 | 0.7656 |
Standard delivery takes 10-20 days depending on quantity. Urgent orders can be accommodated upon request.
We are a manufacturer with over 20 years of production experience. Our trading subsidiary handles international operations.
Yes, samples are available with prepayment of sample and freight costs, refundable upon order placement.
All products undergo strict testing procedures and must pass 100% quality inspection before shipment.
- 24/7 customer support response (including holidays)
- Technical support available anytime
- Free replacements for confirmed quality issues
We accept T/T, D/A, D/P, L/C, O/A and other preferred payment methods before shipment.
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