Name | Self drilling Screws | Materials | Carbon Steel/Stainless Steel |
Standards | DIN ISO ANC BSW JIS etc. | Strength level | 8.8 etc. |
Size | M1.5-M6 | Surface finish | ZPBLACK etc. |
Length | 10-100 | Samples | Available |
Cross recessed countersunk head self-tapping self-drilling screws DIN 7504 | ||||||||
Thread specification | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ||
P | pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
a | maximum value | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
dk | maximum value | 5.5 | 7.3 | 8.4 | 9.3 | 10.3 | 11.3 | |
minimum | 5.2 | 6.9 | 8 | 8.9 | 9.9 | 10.9 | ||
k | maximum value | 1.7 | 2.35 | 2.6 | 2.8 | 3 | 3.15 | |
r | maximum value | 1.2 | 1.4 | 1.6 | 2 | 2.2 | 2.4 | |
slot number | 1 | 2 | 2 | 2 | 3 | 3 | ||
M1 _ | 3.2 | 4.4 | 4.6 | 5.2 | 6.6 | 6.8 | ||
M 2 | 3.2 | 4.3 | 4.6 | 5.1 | 6.5 | 6.8 | ||
dp | 2.3 | 2.8 | 3.6 | 4.1 | 4.8 | 5.8 | ||
Drilling range (plate thickness) | 0.7~1.9 | 0.7~2.25 | 1.75~3 | 1.75~4.4 | 1.75~5.25 | 2~6 |
Dabang Fasteners is a wholly-owned subsidiary of Hebei Chengyi Engineering Materials Co., Ltd.
Our parent company has 21 years experience in fastener production and is ISO9001 ISO14001 ISO45001 SGS certified.
We focus on providing customers with competitive products that meet user needs.
--- Factory price, saving 15-30% of the middleman price difference.
--- exporting to 154 countries, accumulatively serving 1800+ customers, rich export experience
--- 5000 tons in stock, up to 3000 tons per month, average delivery time 7-20 days.
--- After-sales team of 25 people, solve all after-sales problems
0 Risk Commitment
--- If the product quality and packaging problems are found after receiving the goods,
help solve the problem and unconditionally compensate the loss within 30 days.
Our added value
--- In China, provide you with free factory inspection services.