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CSK screws M10 M20 Carbon steel Flat head Hexagon tapping screws Grade8.8 Metal bolts

Name: CSK screws M10 M20 Carbon steel Flat head Hexagon tapping screws Grade8.8 Metal bolts
Brand: Hunan Jia Shan Hardware Tech Co., Ltd.
SKU: DIN, ASEM, ISO
Price: 0.20 USD
Availability: InStock

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

Product Details

Product Description

Highlight:

Usage:	Fastening	Size:	Various Sizes Available
Style:	Self Tapping Screws	Head Style:	Self Tapping Screws
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
Size:	Various Sizes Available
Style:	Self Tapping Screws
Head Style:	Self Tapping Screws
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

CSK screws M10 M20 Carbon steel Flat head Hexagon tapping screws Grade8.8 Metal bolts

CSK Screws M10 M20 Carbon Steel Flat Head Hexagon Tapping Screws Grade 8.8 Metal Bolts

Product Specifications

Attribute	Value
Usage	Fastening
Size	Various sizes available
Style	Self Tapping Screws
Strength	High
Finish	Black
Manufacturer	JIA SHAN Hardward Company
Length	Customizable
Package	Small Packing+Carton Packing+Pallet
Standard	DIN
Package Quantity	100 pieces
Measurement System	INCH, Metric
Port	Shenzhen
Quality	Inspection before shipment
Color	Customizable
Material	Carbon steel

Product Description

Our CSK screws are high-quality carbon steel fasteners with grade 8.8 strength, featuring flat head hexagon design for optimal performance in self-tapping applications.

Key Features:

Manufactured from carburized steel for superior strength
Heat-treated for optimal mechanical properties
High surface hardness with tough core ("soft outside steel")
Surface protection treatment (typically plating or phosphating)
Produced using high-speed cold heading process for consistent quality

Types of Self-Tapping Screws

Ordinary self-tapping screws: Wide thread design, mostly plated surface
Self-cutting tapping screws: Available in pan head, countersunk head, raised countersunk head, and hexagonal head variations
Self-extruding tapping screws: Typically machine thread with triangular cross-section
Self-drilling tapping screws: Eliminate need for pre-drilling holes
Wallboard tapping screws: Special 60° thread angle with phosphate treatment
Combination self-tapping screws: Integrated with washers for enhanced performance

Grade 4.8 vs Grade 8.8 Bolts

For applications requiring standard strength with budget considerations, Grade 4.8 bolts are suitable. For critical connections needing high strength and reliability, Grade 8.8 bolts are recommended. Always consider specific engineering requirements when selecting bolt grades.

Blackening Treatment Benefits

Enhanced rust prevention through stable iron tetraoxide film
Improved surface durability with reduced flaking
Better sliding properties when combined with rust preventive oils
Maintains aesthetic appeal while providing functional benefits

Material Composition

No.	C%	Cr%	Ni%	Mo%
304	0.07	17.5-19.5	8.0-10.5	/
316	0.08	16.0-18.0	10.0-14.0	2.00-3.00
304L	0.03	18-20	8-12	/
316L	0.03	16-18	10-14	2-3

About Our Company

Packaging

Available in small packing, carton packing, and pallet options to meet various shipping and storage requirements.

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