Find a huge selection of DIN915 black zinc plated hexagon socket Set Screws With Dog Piont from China at Gangtong Zheli. Provide professional after-sales service and the right price, looking forward to cooperation. DIN 915 hexagon socket set screws with dog point are specialized screws with a unique purpose. These screws are distinguished by their black zinc plating and the presence of a dog point at the end. The dog point, also known as the extended tip, provides more surface area for contact, enhancing its grip and reducing the chances of slipping. This specific design makes these screws ideal for applications where a stronger hold and resistance to loosening are required, ensuring secure fastening in various mechanical and industrial settings.
The identification of the performance level of tightening screws is denoted by a number followed by the letter "H." The numerical value represents one-tenth of the minimum Vickers hardness, while the "H" signifies hardness. Specific grades like 14H, 22H, and 33H are not applicable to hexagon socket set screws.
Grade 14H: When utilizing free-cutting steel, phosphorus, sulfur, and lead should not exceed 0.11%, 0.34%, and 0.35%, respectively.
Surface hardening is permissible for square head screws classified under grade 14H.
Grades 22H to 45H permit the use of steel with a maximum lead content of 0.35%. Grade 45H alloy steel must contain chromium, nickel, vanadium, or boron as alloying elements.
For grade 22H, if the Rockwell hardness test is adopted, the minimum HRB value and maximum HRC value should be observed.
Grade 45H should not exhibit a complete decarburization layer.
H1 indicates the maximum solid condition's external thread height.
These classifications provide specific guidelines for the composition, hardness, and permissible characteristics of screws across different performance grades.
Product Name | DIN915 black zinc plated hexagon socket Set Screws With Dog Piont | ||||||
Standard: | DIN,ASTM/ANSI JIS EN ISO,AS,GB | ||||||
Material | Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L | ||||||
Carbon steel:1010,1022, | |||||||
Finishing | Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG) phosphorization,Black Oxide,Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated | ||||||
Customized Products Lead time |
Busy season:15-25days,Slack seaon:10-15days | ||||||
Get Free Samples for standard fastener from Gangtong Zheli Fastener | |||||||
For more information visit:www.gtzlfastener.com |