| Standard: |
DIN,ASTM/ANSI, BSW, JIS |
| Material |
Carbon steel, Stainless Steel: SS201, SS304, SS316/Steel Grade: DIN: Gr.4 SAE: Gr.2; Carbon steel |
| Finishing |
Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide, Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated |
| Delivery |
within 10-35 days after confirm the order |
| Samples |
Free Samples for standard fastener |
| OEM/ODM |
We accept OEM/ODM |
| Payment term |
30% TT in advance and 70% TT before shipment |

Screw: self tapping screws, self drilling screw, drywall screw, machine screw,chipboard screw, furniture screw,wood screw, concrete anchor screw, allen screw, stright wood sammy style screw, anti-corrosion bi-metal self drilling screw, pan head screw, button head screw,ect.
Bolt: hex bolt DIN933/931, flange head bolt DIN6923/6926, socket head cap bolt DIN912/DIN7991, carriage bolt DIN603, eye bolt DIN580, U bolt DIN3570, heavy hex bolt, achor bolt, T bolt, square bolt, hanger bolt, etc.
Anchor: wedge anchor, sleeve anchor, expansion anchor, drop in anchor, masonry anchor, rod hanging anchor, 3/4 fixed anchor, dyna anchor, nylon anchor, ect.
Nut : hex nut DIN934, flange nut DIN6923/DIN6926, nylon insert lock nut DIN985/DIN982, jack nut, spring nut, rivet nut, long nut, wing nut, square nut, weld nut, heavy hex nut, 2H nut, cap nut ect.
Washer :flat washer DIN125, spring washer DIN127, lock washer,square washer,spring lock washer, plain washer ect
Rod : threaded rod DIN975,DIN976, threaded bar DIN975 stud bolt, B7 stud bolt ect
All of our products can be made standard DIN, ASME, JIS, BSW, GB. Meanwhile we also support OEM as the drawing.
- Steel threaded screws have a zinc plated finish that resists corrosion and continuous use. The item is available in different sizes and quantities to meet all your needs. Drill screws are not equipped with washers. They can be screwed with compatible 8mm and 10mm wrenches depending on the hex screw model chosen. Perfect for joining metal to wood, metal elements to each other, or plastic, wood and other materials on metal materials.
Need to make a perfect attachment to corrugated sheet, roof or other type of outdoor covering? Our self tapping screw kit is perfect for getting the job done quickly and efficiently. Drilling will not require excessive effort: our hex head threaded screw kit is suitable for both experienced users and hobbyists.


Xi'an Viber Exp & Imp Co., Ltd.
Xi'an Viber Import & Export Co.,Ltd, located in Xi'an , Shaanxi, is the starting point of the Silk Road Belt and Road, enjoying very convenient transportation.
We are a leading professional fasteners manufacture and supplier, we have own factory and dedicated to providing high-quality products and customized services to our global customer. With over ten years of experience in the industry.
Our main products are bolts, nuts, screws, anchors, and formwork accessories, washers, nails rivets and other accessories. We have set up bussiness relationship with professional customers in Middle east, Russia, Asia, Europe, Africa and America. We firmly hold our operational concept Sincerity , devotion , creativity , innovation,taking a quality-profitability development road under the guidance of scientific management.
We have ISO testing reports and QC team, bussiness certificates, import and export certification, rich production technology and OEM experience. we are committed to delivering high-quality products, innovative design, and attentive service. We eagerly anticipate fostering long-term partnerships with you.




1. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.what can you buy from us?
Fastener/screws , bolts, nuts and washers,catering to diverse industry needs and we provide extensive OEM/ODM support
3. why should you buy from us not from other suppliers?
Viber is a professional manufacturer specializing in research, development, manufacture, and servicing of solar mounting systems. we have professionally designed products to handle all systems as well as to ship goods in a timelymanner.
4. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Language Spoken:English,Chinese,Bengalese,Korean,Japanese,Arabic,French,Russian,,Spanish,
5.What is your payment method?
30% value of T/T in advance and other 70% balance on B/L copy. For small order less than 1000USD, would suggest you pay
100% in advance to reduce the bank charges.
6.Do you support customization?
Yes, we can produce according to drawing or sample.