Black Zinc Plated Square Head T-Bolt – Serrated Thread Tail for Machinery Rail/Steel Frame
Product Overview
Our Black Zinc Plated Square Head T-Bolt is engineered for heavy-duty fastening in machinery rails, steel frames, and structural assemblies requiring vibration resistance and anti-corrosion performance. Featuring a serrated thread tail for superior grip and a square head for wrench compatibility, this T-bolt ensures secure, long-lasting connections in dynamic industrial environments. The black zinc plating provides robust protection against rust, humidity, and abrasion, making it ideal for CNC equipment, conveyor systems, and construction frameworks.
Key Features
✅ Serrated Thread Tail Design
- Anti-Loosening Grip: Serrations bite into substrates, resisting rotation under vibration or shock loads.
- Quick Assembly: Self-aligning threads reduce installation time in rail slots or T-channels.
✅ Black Zinc Plating
- Corrosion Resistance: Withstands industrial chemicals, humidity, and outdoor exposure (RoHS/REACH compliant).
- Aesthetic Durability: Matte black finish hides wear and blends into machinery aesthetics.
✅ Square Head for Wrench Compatibility
- High Torque Transfer: Square head fits standard wrenches for secure tightening (e.g., 8mm, 10mm).
- Flush Mounting: Low-profile design prevents interference with moving parts.
✅ Carbon Steel Core (Grade 8.8)
- High Tensile Strength: 800 MPa tensile strength for heavy-load applications.
- Durable & Reusable: Maintains integrity after repeated disassembly.





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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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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.





