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{"title":"High Strength Hex Bolt With Lock And Plain Washer Assemblies","imgUrl":"https:\/\/img.chinax.com\/nimg\/dc\/1a\/af3feb286425aa752099d38f8568-200x200-1\/high_strength_hex_bolt_with_lock_and_plain_washer_assemblies.jpg","attrs":{"Brand Name":"YongBiao","Model Number":"Bolt with Washer Assemblies","Certification":"ISO9001","Place of Origin":"ZHEJIANG CHINA"}}
{"title":"High Strength Phillips Hex Head Screw With Lock And Plain Washer","imgUrl":"https:\/\/img.chinax.com\/nimg\/33\/98\/4a199185676ae0a80041962c16d7-200x200-1\/high_strength_phillips_hex_head_screw_with_lock_and_plain_washer.jpg","attrs":{"Brand Name":"YONGBIAO","Model Number":"Hexagon Bolt with Washer Assemblies","Certification":"ISO9001","Place of Origin":"ZHEJIANG CHINA"}}
{"title":"Cross Recessed Blue White Zinc Plated Hex Head Bolt With Spring Flat Washers","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/8e\/ba3ebbafae10354cae5a2787090a-200x200-1\/cross_recessed_blue_white_zinc_plated_hex_head_bolt_with_spring_flat_washers.jpg","attrs":{"Brand Name":"YONGBIAO","Model Number":"Hexagon Bolt with Washer Assemblies","Certification":"ISO9001","Place of Origin":"ZHEJIANG CHINA"}}
{"title":"Zinc Coated Phillips Hex Head Screw With Spring \/ Flat Washer Kit","imgUrl":"https:\/\/img.chinax.com\/nimg\/b2\/fc\/b00a62722ba7cf8c8d557f09266f-200x200-1\/zinc_coated_phillips_hex_head_screw_with_spring_2f_flat_washer_kit.jpg","attrs":{"Brand Name":"YONGBIAO","Model Number":"Cross Hex Screw with Washer Assemblies","Certification":"ISO9001","Place of Origin":"ZHEJIANG CHINA"}}
{"title":"M3-M8 Cross Drive Hex Bolt Blue White Zinc Spring Flat Washers","imgUrl":"https:\/\/img.chinax.com\/nimg\/fa\/ba\/52246a226563c5591c72fad1daff-200x200-1\/m3_m8_cross_drive_hex_bolt_blue_white_zinc_spring_flat_washers.jpg","attrs":{"Brand Name":"YongBiao","Model Number":"Hex Screw with Washer Assemblies","Certification":"ISO9001","Place of Origin":"ZheJiang China"}}
DIN 913 SS304 Hex Socket Flat End Grub Screw Fastener
Our DIN 913 Hexagon Socket Set Screws with Flat Point are manufactured from premium-grade AISI 304 (A2-70) stainless steel, engineered to deliver exceptional corrosion resistance, high tensile strength, and precise mechanical alignment.
Featuring a headless design with a flush flat point, these socket set screws (also known as grub screws) are designed to press flat against target surfaces without marring or causing structural deformation. They are widely used in machinery, automotive components, electronics, gears, and precision industrial assemblies.
Technical Specifications
Name
DIN913 Grub Screw
SPEC
M1.4-M12
Material
Carbon Steel/Stainless Steel
Head Type
Hex Socket
Application
Automobile
Dimension Table (mm)
d
M1.4
M1.6
M2
M2.5
M3
M4
M5
M6
P
0.3
0.35
0.4
0.45
0.5
0.7
0.8
1
dp max
0.7
0.8
1
1.5
2
2.5
3.5
4
dp min
0.45
0.55
0.75
1.25
1.75
2.25
3.2
3.7
e min
0.803
0.803
1.003
1.427
1.73
2.3
2.87
3.44
s dn
0.7
0.7
0.9
1.3
1.5
2
2.5
3
s max
0.724
0.724
0.902
1.295
1.545
2.045
2.56
3.08
s min
0.711
0.711
0.889
1.27
1.52
2.02
2.52
3.02
t(min) Short screw
0.6
0.7
0.8
1.2
1.2
1.5
2
2
t(min) Long screw
1.4
1.5
1.7
2
2
2.5
3
3.5
Key Features & Advantages
Flush & Space-Saving Design: The headless (flat top) design sits fully flush with or below the surface, making it ideal for compact assemblies with tight spatial clearances.
Non-Marring Flat Point: Designed with a smooth, precision-machined flat end that exerts firm clamping pressure without marring, scratching, or deforming mating components.
High Torque Transmission: The internal hex socket (Allen drive) allows for deep key engagement, enabling higher tightening torque while reducing the risk of cam-out or socket stripping.
Precision Thread Alignment: Features clean, burr-free metric threads for smooth insertion, tight tolerances, and maximum resistance to thread stripping under heavy vibration.
Versatile Material Options: Available in Stainless Steel (SS304/SS316 / A2-70/A4-80) for superior corrosion resistance, as well as Grade 12.9 Alloy Steel / 45H for heavy-duty industrial applications.
Typical Industrial Applications
Industrial Machinery: Securing gears, pulleys, and collars onto rotating shafts.
Electronics & Medical Devices: Precision internal assemblies with space restrictions.
Hardware & Fixtures: Door handles, locks, and architectural hardware fittings.
Why Partner With Us?
Integrated Supply Chain Advantage: Based in the Yangtze River Delta manufacturing zone, we offer efficient lead times and competitive direct-factory pricing.
Custom Stamping Capabilities: We can develop custom tooling for your specific internal/external diameter specifications when standard dimensions don't fit.
Material Guarantee: 100% verifiable 304 stainless steel with Material Test Certificates (MTC) and SGS reports available for every batch.
B2B Logistics Expertise: Flexible trade terms including FOB, CIF, and CPT with secure bulk packaging for international transit protection.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2012
Total Annual:
5000000-6000000
Employee Number:
45~53
Ecer Certification：
Verified Supplier
Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work... Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work...
