2022 High quality Self Tapping Lag Screws - China Manufacturer Fastners Hex Pan Head Zinc Plated Self Tapping Screw – Xinruifeng
2022 High quality Self Tapping Lag Screws - China Manufacturer Fastners Hex Pan Head Zinc Plated Self Tapping Screw – Xinruifeng Detail:
| Size(mm) | Size(inch) | Size(mm) | Size(inch) | Size(mm) | Size(inch) | Size(mm) | Size(inch) |
| 3.5*13 | #6*1/2 | 3.5*65 | #6*2-1/2 | 4.2*13 | #8*1/2 | 4.2*102 | #8*4 |
| 3.5*16 | #6*5/8 | 3.5*75 | #6*3 | 4.2*16 | #8*5/8 | 4.8*51 | #10*2 |
| 3.5*19 | #6*3/4 | 3.9*20 | #7*3/4 | 4.2*19 | #8*3/4 | 4.8*65 | #10*2-1/2 |
| 3.5*25 | #6*1 | 3.9*25 | #7*1 | 4.2*25 | #8*1 | 4.8*70 | #10*2-3/4 |
| 3.5*29 | #6*1-1/8 | 3.9*30 | #7*1-1/8 | 4.2*32 | #8*1-1/4 | 4.8*75 | #10*3 |
| 3.5*32 | #6*1-1/4 | 3.9*32 | #7*1-1/4 | 4.2*34 | #8*1-1/2 | 4.8*90 | #10*3-1/2 |
| 3.5*35 | #6*1-3/8 | 3.9*35 | #7*1-1/2 | 4.2*38 | #8*1-5/8 | 4.8*100 | #10*4 |
| 3.5*38 | #6*1-1/2 | 3.9*38 | #7*1-5/8 | 4.2*40 | #8*1-3/4 | 4.8*115 | #10*4-1/2 |
| 3.5*41 | #6*1-5/8 | 3.9*40 | #7*1-3/4 | 4.2*51 | #8*2 | 4.8*120 | #10*4-3/4 |
| 3.5*45 | #6*1-3/4 | 3.9*45 | #7*1-7/8 | 4.2*65 | #8*2-1/2 | 4.8*125 | #10*5 |
| 3.5*51 | #6*2 | 3.9*51 | #7*2 | 4.2*70 | #8*2-3/4 | 4.8*127 | #10*5-1/8 |
| 3.5*55 | #6*2-1/8 | 3.9*55 | #7*2-1/8 | 4.2*75 | #8*3 | 4.8*150 | #10*6 |
| 3.5*57 | #6*2-1/4 | 3.9*65 | #7*2-1/2 | 4.2*90 | #8*3-1/2 | 4.8*152 | #10*6-1/8 |
Tianjin Xinruifeng Technology Co., Ltd., was established in 2008 and its business covers fastener design, manufacturing and export. We have 3 production bases, with a total area of 10,000+ square meters. Our main products include drywall screws, chipboard screws, self-drilling screws and self-tapping screws. We can also provide other fasteners, like nails, staples, blind rivets, anchors, bolts and nuts.
We have 200+ sets of automatic production equipment, including wire drawing machines, cold-heading machines, thread rolling machines, tailing machines and heat-treatment lines. We are your one-stop manufacturer from raw material to final products. Our annual production capacity reaches up to 30,000 tons, 70% of which are exported to different countries and regions.



To satisfy the demands from markets and customers, we have more than 300 machines in two shift production in order to providing drywall screws and all kinds wide various screws and fastener products in market share.
To prevent any mistakes happen during developing, the developing procedure is controlled under ISO 9001. From design → information collection → setting developing items → design input → design output → pilot run → design verification → mass production, every stage is strictly inspected & controlled by R&D team. Based on the precise control from research, drawing, pilot run management and design change, the development will be cost effective and efficient.
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Fast and superior quotations, informed advisers to help you choose the correct merchandise that suits all your requirements, a short generation time, responsible quality control and different services for paying and shipping affairs for 2022 High quality Self Tapping Lag Screws - China Manufacturer Fastners Hex Pan Head Zinc Plated Self Tapping Screw – Xinruifeng, The product will supply to all over the world, such as: Iran, Uruguay, Karachi, we rely on own advantages to build a mutual-benefit commerce mechanism with our cooperative partners. As a result, we have gained a global sales network reaching the Middle East, Turkey, Malaysia and Vietnamese.
The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.






