INCH Stainless Cross Large Flat Head Self Drilling Screw Length 180mm
Product Overview
Engineered for demanding industrial and structural projects, our Stainless Steel Cross (Phillips) Large Flat Head Self-Drilling Screws deliver unmatched strength, corrosion resistance, and installation efficiency. With a 180mm (7") length, these screws are designed to penetrate thick steel, wood, or composite materials without pre-drilling, making them ideal for heavy-duty construction, roofing, and marine applications. The combination of a Phillips drive and flat head ensures a secure, flush finish even in high-stress environments.
Key Features
✅ High-Strength Stainless Steel
- Grade 304/316: 304 for general use; 316 for marine/coastal areas with superior saltwater resistance.
- Corrosion-Proof: Withstands rust, humidity, and extreme temperatures (-40°F to 1500°F / -40°C to 816°C).
✅ Self-Drilling Design
- Integrated Drill Point (#5): Sharp, hardened tip drills through materials up to 12-gauge steel without pilot holes.
- Coarse Threads: Aggressive grip for rapid installation in metal, wood, or composites.
✅ Large Flat Head & Phillips Drive
- Flat Head (DIN 7991): Wide bearing surface prevents pull-through and sits flush with surfaces.
- Phillips Drive (PH3/PH4): Compatible with standard Phillips screwdrivers or impact tools for high torque control.
✅ Extra-Long 180mm (7") Shaft
- Structural Versatility: Ideal for thick beams, timber frames, and steel-to-wood connections.
- Custom Lengths: Available from 50mm to 300mm for specialized projects.
✅ Certifications & Standards
- ASTM F594, ISO 3506, ROHS: Compliant with global safety and quality standards.
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More Detail Informations
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Available Material
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1.Stainless Steel: SS303, SS304, SS316, SS410, SS420;
2.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045; 3.Brass: C3602,C3604,Hpb59,Hpb62,Hpb65,Hpb58,Hpb70 ; 4.Aluminum: Al6061, Al6063 etc or as your requirements |
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Head type
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CSK Head,Pan Head,Truss Head,Hexagon Head,Round Head,Oval Head,Button Head,Cap Head,Cheese Head,etc.
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Hardness
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Carbon Steel:HRC:28~35 ,HV450~700
Alloy Steel:HRC:32~39(grade10.9) HRC:39~44(grade12.9) |
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Finish
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Zinc plated, Nickel plated, Bronze, Copper,Phosphate, Oxidation black, Passivation, Tin, Dacromet, Gold, Chrome, Silver,
Phosphorization,Zinc-nickel alloy plated etc. |
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Sample Available
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The sample is free of charge if we have the existing tooling,you only need to pay for the freight cost
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Delivery time
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Samples time 3-5 working days, Lead time 20-25 working days
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Pricing Term
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EXW Dongguan(FCA),FOB, CIF, CNF, DDU,etc.
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Packing
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Bulk in PE bag or Small boxes.then in carton .pallet
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Payment term
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TT (30% in advance as deposit, balance before delivery) , L/C, Western Union,PayPal etc
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Management system
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ISO9001:2015
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Certificate
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ISO,ROHS
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Why Choose Us?
✅ OEM/ODM Support: Full custom packaging, branding, and documentation.
✅ Quality Assurance: ISO 9001-certified with full material traceability and testing (salt-spray, torque, tensile).
✅ Flexible MOQs: Prototype batches to large-scale production.
✅ Fast Turnaround: 10–15 days for standard orders; expedited options available.
A1: Our main products are Electronic screws,Sems screws,Tapping screws,Chicago screws,Shoulder screws etc. Special Non-standard studs,Turning parts and High-end precision complex CNC Machining parts etc.
A2: Carbon Steel, Alloy Steel, Aluminum alloy,Stainless Steel, Brass, Copper ,Titanium alloy or according to your requirement.
A: We usually offer you a quotation within 12 hours, and the special offer is not more than 24 hours.Any urgent cases, please contact us directly by phone or send email to us.
A: If the weight of goods more than 80kg,Normally we use shipment to transprot the orders. It is about 20-30days . If the weight of goods less than 80kg,or there are urgent, we can send the goods via air express,It is 3~5 days.
Q4: What's your packing?What to do in case of damaged goods during transport?
A1: Our Normal packing is bulking in Cartons, less than 20 kgs/carton, 48 cartons / pallet. We also can pack products according to your requirement.
A2: To avoid any subsequent trouble regarding quality issue, we suggest you check the goods once you receive them. If there is any transport damaged or quality issue, don't forget take the detail pictures and contact us as soon as possible, we will properly handle it to make sure your loss to reduce to the smallest.
A: Yes, for big order, frequent customers, we give reasonable discounts.
A: Our production equipment is a new imported equipment. We have a group of skilled workers who have been working for more than 10 years. Their production experience is very rich and their skills are very skilled. The screws can be 30 million pcs/month. We have sufficient funds to ensure the normal operation of the factory.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.