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Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Specifications
MOQ :
500 Pcs
Place of Origin :
Shenzhen, China
Price :
0.95 USD
Delivery Time :
7-20 Days
Certification :
ISO 9001
Payment Terms :
T/T
Brand Name :
KEMIFON
Model Number :
KF-RDS-5
Supply Ability :
3000000 Pcs / Month
Packaging Details :
Standard Export Packaging
Description
Product Description

Our Countersunk Flat Head T10 Torx Head Screw Assortment Kit is a dedicated precision fastener solution for red dot sights, reflex optics, mounts and tactical accessories. As a professional fastener manufacturer, we supply this full set featuring countersunk flat head design that sits flush on mounting surfaces for neat, stable installation.

It includes 8 standard thread specifications: metric M3, M3.5, M4 and imperial #4-40, #6-32, #6-40, #6-48, #8-40. Each thread type has 5 available lengths: 6mm, 8mm, 10mm, 12mm, 14mm (length including screw head), 4 pieces per length. All screws adopt high-strength 12.9 grade carbon steel with black oxide surface treatment, featuring standard precision tolerance, great hardness, wear resistance and anti-rust performance. A supporting T10 L-shaped torx wrench is included for easy installation.

We provide professional OEM and custom service. We support custom size, surface finish, packaging and other personalized requirements based on your drawings or samples, to satisfy various precision fastening demands.

Technical Specification
Product Name:
Flat Head Red Dot Screw Kit
Screw Head Type:
Countersunk (Flat Head)
Drive Type:
T10 Torx
Thread Types:
M3, M3.5, M4, #4-40, #6-32, #6-40, #6-48, #8-40
Screw Length:
6mm, 8mm, 10mm, 12mm, 14mm (length includes screw head)
Quantity:
4 pcs per length, total 160 screws + 1 T10 L-Torx Wrench
Material:
12.9 Grade High Carbon Steel
Surface Treatment:
Black Oxide (Blackened)
Hardness:
12.9 Grade Standard Hardness
Dimensional Tolerance:
Industrial standard precision tolerance
Applications
  • Mounting & replacement of red dot sights, reflex sights and optics
  • Installation of optic rails, tactical brackets and related accessories
  • Gunsmithing and tactical equipment assembly
  • Precision electronic device fastening with flush mounting requirement
  • Industrial precision machinery assembly
  • Custom optics projects and DIY tactical modifications
  • All scenarios requiring countersunk flat head torx fasteners
Custom Services

As a reliable precision fastener manufacturer, we deliver one-stop custom service and OEM solutions:

  • OEM production per customer drawings, samples and technical requests
  • Customize screw head size, thread, length and overall dimensions
  • Optional different surface treatments and material grades
  • Custom packaging, private labeling and batch production
  • Small batch and mass order are both acceptable
Product Advantages
  • Countersunk flat head design: Flush mounting without protrusion, avoids interference to equipment operation and ensures tight fit
  • Integrated multiple metric & imperial sizes, no need to purchase separate screws for replacement or installation
  • 12.9 grade high-strength carbon steel prevents screw slipping, breaking and loosening under use
  • Strict precision tolerance guarantees perfect thread matching, effectively avoids cross-threading
  • Uniform black oxide finish improves corrosion resistance, adapts to diverse use environments
  • Equipped with matched T10 wrench, ready to use out of the box, saves extra tool cost
  • Professional manufacturer supports custom service, solves your special fastening demands
Quality Control

We carry out full-process strict quality control for all products:

  • Raw material inspection to verify carbon steel material and hardness compliance
  • Dimensional & thread tolerance testing for every batch of countersunk flat head torx screws
  • Inspection on black oxide surface treatment to ensure uniform coating and anti-rust effect
  • 100% visual inspection to remove burrs, defects and unqualified products
  • Assembly & fit testing with standard T10 torx tools for practical performance verification
  • Complete batch record and traceability system for quality assurance
FAQ
Q: Is this a countersunk flat head screw?
A: Yes. All screws are designed with standard countersunk flat head, which can be installed flush on the surface.
Q: What equipment do these screws fit?
A: They are widely compatible with most red dot sights, optical mounts and tactical accessories using corresponding metric & imperial threads.
Q: Can you make custom screws or custom packaging?
A: Sure. We offer full custom service and OEM production according to your requirements.
Q: What is the material and hardness of the screws?
A: Made of 12.9 grade carbon steel with black oxide finish, featuring high hardness and durability.
Q: Does the kit come with a wrench?
A: Yes, each set is equipped with one T10 L-shaped torx wrench for installation.
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Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel

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Product Detail
MOQ :
500 Pcs
Place of Origin :
Shenzhen, China
Price :
0.95 USD
Delivery Time :
7-20 Days
Certification :
ISO 9001
Payment Terms :
T/T
Contact Supplier
video
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel
Countersunk Flat Head M3, M3.5, M4 #4-40, #6-32, #6-40, #6-48, #8-40 T10 Torx Red Dot Screw Assortment Kit Black Oxide Carbon Steel

Shenzhen Kemifon Precision Manufacturing Co., Ltd.

Verified Supplier
1 Years
guangdong, shenzhen
Since 2009
Business Type :
Manufacturer, Trading Company, Exporter, Seller
Main Products :
Precision CNC Machining Services, Custom CNC Machining Services, Swiss CNC Machining
Total Annual :
50000000-60000000
Employee Number :
200~300
Certification Level :
Verified Supplier
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