Fasteners Solutions

Fasteners Solutions

Yieh Corp. Fasteners providing good quality fasteners and custom manufactured specials to manufacturers and worldwide. Our extensive products and manufacturing capabilities provide a focused source for your fastener applications. Our customer service team listens to your requirements. Our products include self-tapping screws, machine screws, self-drilling screws, SEMS, bolts, turning parts / CNC parts, nuts, washers, and more.

Fasteners

fastener

Product Specification and Size

Material

Carbon Steel – C1010, C1018, C1022, 12L14, 10B12

Stainless Steel – 302, 304, 316, 410

(Aluminum Alloy, Titanium Alloy will be

 available soon.)
Diameter M3 ~ M6 or above
Length 10~200mm
Standard IFI, DIN, JIS, ISO, BSW or any Automotive Spec.
Heat treatment Standards and De-Embrittlement
Coating Various standard finish, Ruspert, Nylok, Hot-dipped Galvanized, Dacrotizing, Xylan, Corlor Chromate, Nanomate

Mechanical properties of the carbon steel materials

Carbon steel can be categorized into three kinds in general: low carbon steel, mild carbon steel and high carbon steel. Low carbon steel, such as C1015, C1018 and C1022, are widely used in screws production. With correct heat treatment low carbon steel screws could be applied in many fields. C1006, C1008 and C1015, in the other hand, do not require heat treatment and are mostly used to produce machine screw and applied mainly in electronic mechanical field. Stainless steel screws are more workable and durable. They are ideally suited for a variety of industrial, medical, culinary, automotive and electronic mechanical industries.

Stainless Steel Chemical Composition

ASTM Specification
Spec
ASTM
A240
Steel Grade C% Max. Si% Max. Mn% Max. P% Max. S% Max. Cr% Max. Ni% Max. Mo% Max. Ti% Max. Other
S30400 0.08 0.75 2.0 0.045 0.03 18.0~20.0 8.0~10.5 - - N:0.1Max
S30403 0.03 0.75 2.0 0.045 0.03 18.0~20.0 8.0~12.0 - - N:0.1Max
S31603 0.030 0.75 2.00 0.045 0.030 16.0~18.0 10.0~14.0 2.00~3.00 - N:0.1Max
S41000 0.08-0.15 1.0 1.0 0.04 0.03 11.5~13.5 0.75 - - -
EN Specification
Spec
EN 10088 10028
Steel Grade C% Max. Si% Max. Mn% Max. P% Max. S% Max. Cr% Max. Ni% Max. Mo% Max. Ti% Max. Other
1.4301 0.07 1.00 2.00 0.045 0.015 17.5~19.5 8.0~10.5 - - N:0.11max.
1.4307 0.030 1.0 2.0 0.045 0.015 17.5~19.5 8.0~10.5 - - N:0.11max.
1.4401 0.07 1.0 2.00 0.045 0.015 16.5~18.5 10.0~13.0 2.00~2.50 - N:0.11max.
JIS Specification
Spec JIS
JIS G4304/G4305/G4312
Steel Grade C% Max. Si% Max. Mn% Max. P% Max. S% Max. Cr% Max. Ni% Max. Mo% Max. Ti% Max. Other
SUS 304 0.08 1.0 2.0 0.045 0.03 18.0~20.0 8.0~10.5 - - -
SUS 304L 0.03 1.0 2.0 0.045 0.03 18.0~20.0 9.0~13.0 - - Cu:1.0~3.0
SUS 316L 0.030 1.0 2.00 0.045 0.03 16.00~18.00 12.0~15.0 2.00~3.00 - -
SUS 410 0.15 1.0 1.0 0.040 0.03 11.5~13.5 0.6 - - -

Hex head w/ zinc alloy cold forging cap self drilling screw

Zinc alloy cold forging hex head


Product details:
- Product range: M5 / M6 x 25, 30, 35mm (max.)
- Screw material: mid or high carbon w/ Dacromate finish
- Hex cap: zinc alloy


Advantages of hex cap screw:
- Zinc alloy cold forging hex head design allows it to have firmer grip than normal hex washer head.
- Assembled with rubber washer underneath the head to stop any leakage, perfect for construction work.
- Zinc alloy cold forging hex head provides superior corrosion resistance. With liquid or powder painting on the head, it serves both practical anti-corrosion function and aesthetic purpose.


Application:
- Perfect for construction work, new invention to replace roofing screw.

Hex head w/ zinc alloy cold forging cap self-drilling screw

Zinc alloy cold forging hex head


Product details:
- Product range: M5- M10 x 230mm (max.)
- Screw material: mid or high carbon w/ Dacromate finish
- Hex cap: zinc alloy


Advantages of hex cap screw:
- Zinc alloy cold forging hex head design allows it to have firmer grip than normal hex washer head.
- Assembled with rubber washer underneath the head to stop any leakage, perfect for construction work.
- Zinc alloy cold forging hex head provides superior corrosion resistance. With liquid or powder painting on the head, it serves both practical anti-corrosion function and aesthetic purpose.


Application:
- Perfect for construction work, a new invention to replace roofing screw.

Hex washer head w/ stainless steel flange cap self drilling screw

Stainless steel hex washer head cap flange


Product details
- Product range: M5 / M6 x 50mm (max.)
- Screw material: mid or high carbon, zinc plated
- Stainless Steel flange cap: SS 304


Advantages of hex cap screw:
- Stainless steel hex washer head cap flange design allows it to have firmer grip than normal hex washer head.
- Assembled with rubber washer underneath the head to stop any leakage, perfect for construction work.
- Stainless steel hex washer head cap flange provides superior corrosion resistance. With liquid or powder painting on the head, it serves both practical anti-corrosion function and aesthetic purpose.


Application:
Perfect for construction work, new invention to replace roofing screw.

Self-Tapping Screws


- Wood Screw
- Drywall Screw
- Concrete Screw
- Sheet Metal Screw (SMS)
- Furniture Screw

Machine Screws

Self-Drilling Screw

Self-Drilling Screw


- DIN 7504
- Roofing Screw
- Hex Washer Head SDS with Head Liquid/Powder Painted

SEMS(Screw and washer assembled)

Screw and washer assembled

Bolts


- DIN 933 / ISO 4017
- DIN 931 / ISO 4014

Turning Parts / CNC Parts

Turning Parts CNC Parts Turning Parts /CNC Parts

Nuts

Nuts

Washers

Washer Washer


- EPDM Washer
- Spring Washer
- Rubber Washer
- Serrated Washer
- Clip Washer