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High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment

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High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment

Name: High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment
Brand: FinExpress
Price: 0.03 USD

Buy cheap High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment product

Place of Origin : Guangdong, China

Brand Name : FinExpress

Model Number : Torx screw

MOQ : 30000

Price : $0.03/pieces 10000-49999 pieces

Payment Terms : T/T, L/C, D/A, D/P

Supply Ability : 500000000 Piece/Pieces per Week

Delivery Time : 7~15 Working Day

Packaging Details : 1.1000pcs / plastic bag,20kgs/ carton ,then put on the wood pallet ,
2.Carton size:28cm*18cm*13cm,
3.Wood pallet size:118cm*113cm,Weight:700~800Kg Bulk:0.8 cubic
4.The weight of 20 FT Container:20~25 Tons
5,As your requirements

Finish : Plain, Black Oxide, ZINC PLATED, Custom

Material : Stainless steel, Steel, Stainless steel/ Carbon steel

Measurement system : INCH

Head Style : Pan, Truss, Flat, Round, Binding

Standard : DIN/ ISO/ Non-standard

Hardness : Surface Hardness,HV400~500 HV0.3,Core Hardness,320~380HV10

Breaking torque : (N.m):0.8~32

Heat Treatment : Tempering.Spheroidizing, Quenching, Spheroidizing annealing etc

size : M1.6~M10 or #2-56~1/2"or be customized

Package : Small Packing+Carton Packing+Pallet

Reliability test : mechanical dimentions, hardness test. salt spray endurance test

Delivery time : In stock 5~7 working days, customized 15~25 working days

MOQ : 1 piece in stock, 30,000 pcs customized

Length : 10mm~180mm

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High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment

Product Overview
Engineered for the most demanding industrial applications, our High Hardness Black Oxide Torx T7 Screws deliver unmatched strength, corrosion resistance, and torque performance. Combining advanced heat treatment processes with a precision Torx T7 drive, these screws are designed to withstand extreme stress, vibration, and harsh environments. Ideal for aerospace, automotive, and heavy machinery, they ensure reliable fastening where failure is not an option.

Key Features

✅ Ultra-High Hardness
Heat-treated alloy steel (HRC 38–45) provides exceptional tensile strength (up to 1,800 MPa) and resistance to wear, deformation, and shear forces.

✅ Black Oxide Coating
A matte black oxide finish enhances corrosion resistance, reduces friction, and adds a sleek, non-reflective appearance for critical applications.

✅ Torx T7 Drive
Tamper-resistant Torx T7 (6-lobe star) drive maximizes torque transfer, minimizes cam-out, and ensures secure tool engagement.

✅ Precision Heat Treatment
Quenched and tempered to refine grain structure, optimizing hardness-to-toughness balance for dynamic load resistance.

✅ Vibration & Loosening Resistance
Thread-locking grooves and precision threading prevent loosening in high-vibration environments like engines or rotating machinery.

✅ Global Compliance
ROHS, REACH, and ISO 9001 certified, ensuring safety and environmental responsibility.

Technical Specifications

Material: Alloy Steel (Grade 10.9/12.9)
Finish: Black Oxide (Standard), Optional Zinc-Nickel or Dacromet
Drive Type: Torx T7 (TR15 Security Drive Available)
Thread Pitch: Fine or Coarse (Customizable)
Diameter: M3–M12 (Metric) or #4–½" (Imperial)
Length: 6mm–100mm (Custom Lengths Available)
Temperature Range: -40°F to 600°F (-40°C to 316°C)
Certifications: ASTM A574, ISO 898-1, DIN 7984

High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment

Specification

More Detail Informations
Available Material	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
Head type	CSK Head,Pan Head,Truss Head,Hexagon Head,Round Head,Oval Head,Button Head,Cap Head,Cheese Head,etc.
Hardness	Carbon Steel:HRC:28~35 ,HV450~700 Alloy Steel:HRC:32~39(grade10.9) HRC:39~44(grade12.9)
Finish	Zinc plated, Nickel plated, Bronze, Copper,Phosphate, Oxidation black, Passivation, Tin, Dacromet, Gold, Chrome, Silver, Phosphorization,Zinc-nickel alloy plated etc.
Sample Available	The sample is free of charge if we have the existing tooling,you only need to pay for the freight cost
Delivery time	Samples time 3-5 working days, Lead time 20-25 working days
Pricing Term	EXW Dongguan(FCA),FOB, CIF, CNF, DDU,etc.
Packing	Bulk in PE bag or Small boxes.then in carton .pallet
Payment term	TT (30% in advance as deposit, balance before delivery) , L/C, Western Union,PayPal etc
Management system	ISO9001:2015
Certificate	ISO,ROHS

Why Choose Us

High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment

Company Profile

High Hardness Special Screw Black Oxide Torx T7 Screws With Heat Treatment

FAQ

Q1: What is your main products and material supply?
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.

Q2: When can I get the price?
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.

Q3: What about the transportation and delivery date?
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.

Q5: Can I get discounts?
A: Yes, for big order, frequent customers, we give reasonable discounts.

Q6: Do you have enough capacity?
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.

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