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Home > products > Metal Screw > Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw

Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw

Product Details

Place of Origin: China

Brand Name: JIA SHAN

Certification: ISO

Model Number: DIN, ASEM, ISO

Payment & Shipping Terms

Minimum Order Quantity: 100

Price: USD0.2/pcs-USD1/pcs

Delivery Time: 1-5 weekds

Payment Terms: T/T, Western Union

Supply Ability: Batch order abailable

Get Best Price
Highlight:
Usage:
Fastening
Style:
Thumb Screw
Size:
Various Sizes Available
Head Style:
Thumb Screw
Strength:
High
Finish:
Black
Manufacturer:
JIA SHAN Hardward Company
Length:
As Customisation
Package:
Small Packing+Carton Packing+Pallet
Standard:
DIN
Package Quantity:
100 Pieces
Shape:
Self Tapping Screws
Measurement System:
INCH, Metric
Port:
Shenzhen
Quality:
Inspection Before Shipment
Color:
As Customisation
Material:
Carbon Steel
Usage:
Fastening
Style:
Thumb Screw
Size:
Various Sizes Available
Head Style:
Thumb Screw
Strength:
High
Finish:
Black
Manufacturer:
JIA SHAN Hardward Company
Length:
As Customisation
Package:
Small Packing+Carton Packing+Pallet
Standard:
DIN
Package Quantity:
100 Pieces
Shape:
Self Tapping Screws
Measurement System:
INCH, Metric
Port:
Shenzhen
Quality:
Inspection Before Shipment
Color:
As Customisation
Material:
Carbon Steel
Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw
Black M8 M12 Carbon Steel Thumb Screw Class 8.8 Grade 8.8 Spade Head Thumb Screw
Product Specifications
Usage Fastening
Style Thumb Screw
Size Various sizes available
Head Style Thumb Screw
Strength High
Finish Black
Manufacturer JIA SHAN Hardward Company
Length Customizable
Package Small Packing + Carton Packing + Pallet
Standard DIN
Package Quantity 100 pieces
Shape Self Tapping Screws
Measurement System INCH, Metric
Port Shenzhen
Quality Inspection before shipment
Color Customizable
Material Carbon steel
Product Overview
Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw 0

Thumb screws are multi-purpose fasteners designed for manual tightening and loosening without tools. Ideal for applications where space constraints prevent tool use or where frequent access is required for maintenance.

Key Features
  • Knurled head for improved grip during manual installation
  • High-strength carbon steel construction (Grade 8.8)
  • Black finish for corrosion resistance
  • Available in various sizes (M8, M12, and custom lengths)
  • DIN standard compliant
  • Suitable for frequent removal and reinstallation
Applications

These thumb screws are commonly used in:

  • Panel fastening in tight spaces
  • Equipment covers and enclosures
  • Battery compartments
  • Safety covers and access panels
  • Consumer electronics and appliances
  • Industrial equipment requiring frequent maintenance
Material Properties

Carbon steel offers excellent strength-to-weight ratio with:

  • High tensile strength (Grade 8.8)
  • Good wear resistance
  • Durable black finish
  • Customizable length options
Oxidation Temperature Guide
Type of Steel Inlet Temperature (°C) Outlet Temperature (°C) Processing Time (min)
High-carbon steel 120-125 125-130 40
Low and medium carbon steel 125-130 130-135 50
Chromium-silicon steel 125-130 130-140 60
High-alloy steel 130-135 135-145 70
High speed steel 135-140 140-150 80
Packaging & Shipping

Available in multiple packaging options:

  • Small packing (retail quantities)
  • Carton packing (bulk quantities)
  • Palletized for large orders

Standard package contains 100 pieces. All shipments undergo quality inspection prior to dispatch from Shenzhen port.

Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw 1
Manufacturer Information
Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw 2 Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw 3 Black M8 M12 Carbon steel Thumb Screw Class8. 8 Grade 8.8 Spade Head Thumb Screw 4

JIA SHAN Hardware Company specializes in high-quality fasteners with strict quality control measures and customizable solutions for industrial applications.