TOBO GROUP LTD
| Delivery Time | 15-30 Workdays |
| Quality | High lever |
| Drill Point | ANSI B 16.9, ASTM A420 |
| Coating | Zinc Plated |
| Payment Terms | T/T, Western Union |
| Material | Steel |
| Grade | 4.8/6.8/8.8/10.9/12.9 |
| Package | PLAIN OR CUSTOMIZED |
| Supply Ability | 15tons per month |
| Product Name | Self Drilling Metal Screws |
| Standardscompliance | ISO 1478 |
| Head Type | Pan Head |
| Surface | PLAIN ,ZINC PLATED |
| Packaging Details | Standard Shipping Package |
| Certification | ISO/TUV/SGS |
| Model Number | Self Drilling Metal Screws |
| Brand Name | TOBO |
| Place of Origin | Shanghai, China |
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Product Specification
| Delivery Time | 15-30 Workdays | Quality | High lever |
| Drill Point | ANSI B 16.9, ASTM A420 | Coating | Zinc Plated |
| Payment Terms | T/T, Western Union | Material | Steel |
| Grade | 4.8/6.8/8.8/10.9/12.9 | Package | PLAIN OR CUSTOMIZED |
| Supply Ability | 15tons per month | Product Name | Self Drilling Metal Screws |
| Standardscompliance | ISO 1478 | Head Type | Pan Head |
| Surface | PLAIN ,ZINC PLATED | Packaging Details | Standard Shipping Package |
| Certification | ISO/TUV/SGS | Model Number | Self Drilling Metal Screws |
| Brand Name | TOBO | Place of Origin | Shanghai, China |
| High Light | ASTM C954 stainless steel self drilling screw ，410 hex washer head roofing screw ，EPDM washer self drilling metal screw | ||
| Parameter | Details |
|---|---|
| Product Name | Self Drilling Screw – Hex Washer Head |
| Standard | DIN 7504 / ISO 10666 |
| Thread Size | #12-24 UNF |
| Length | 1" (25.4 mm) |
| Point Type | Type 3 (#3) – for 2.8–5.3 mm steel |
| Head Style | Hex Washer Head (integral flange) |
| Drive | Hex socket 5/16″ (8 mm) |
| Material | Carbon steel, case hardened |
| Surface | Zinc plated, bright silver |
| Point Hardness | 55–60 HRC |
| Core Hardness | 35–45 HRC |
| Tensile Strength | ≥ 100,000 psi |
| Torque Strength | > 12 N·m |
| Pull‑out Resistance | > 800 N (in 3 mm steel) |
| Standards | ASTM C954, SAE J78 |
Self drilling screw that drills, taps, and fastens in one operation. Type 3 point eliminates pre‑drilling in 2.8–5.3 mm steel. Hex washer head provides high torque without cam‑out. Zinc plated for indoor and mild outdoor use.
Steel stud framing (drywall tracks, furring channels)
Metal roofing and siding (with EPDM washer option)
HVAC ductwork and hanger attachment
Electrical enclosures and backplate mounting
Industrial shelving and racking
Automotive underbody and trim panels
General sheet metal fabrication
No pre‑drilling – saves 50% installation time
One tool operation – drill and drive with a single impact driver
Type 3 point matches common structural steel gauges (14–10 ga)
Hex washer head prevents stripping and distributes load
Full thread provides maximum pull‑out strength (>800 N)
Case hardened – hard point (55 HRC), tough core (40 HRC)
Zinc plating offers reliable corrosion protection
Available in multiple lengths – 3/4″ to 6″
Drill point cuts hole through steel
Flutes eject chips, leaving clean hole
Threads tap into the hole wall
Washer head seats and clamps joint
Resists vibration loosening
Zinc coating prevents rust
Packing: Bulk cartons or strip collated, as per requirement
Delivery: 7–15 days for stock; 15–20 days for custom
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
5000000-6000000
Ecer Certification：
Verified Supplier
TOBO GROUP LTD is a professional fastener manufacturer and exporter in China. We produce various types of fasteners (include non-standard) in GB, DIN, BS, ANSI/ASME, IFI, ISO, and JIS with 300 tons of monthly productivity. Our main products are bolts, nuts, screws, threaded rods, plain was... TOBO GROUP LTD is a professional fastener manufacturer and exporter in China. We produce various types of fasteners (include non-standard) in GB, DIN, BS, ANSI/ASME, IFI, ISO, and JIS with 300 tons of monthly productivity. Our main products are bolts, nuts, screws, threaded rods, plain was...
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