https://jlhbfastener.com/zh Jiulong (Hebei) Fastener Manufacturing Co., Ltd. Wed, 22 Jan 2025 04:22:17 +0000 zh-Hans hourly 1 https://wordpress.org/?v=6.7.1 https://jlhbfastener.com/wp-content/uploads/2024/12/微信图片_20241211200155-75x75.jpg https://jlhbfastener.com/zh 32 32 https://jlhbfastener.com/zh/product/cross-recessed-countersunk-head-self-drilling-screws/ Mon, 20 Jan 2025 03:08:59 +0000 https://jlhbfastener.com/?post_type=product&p=413 产品介绍

Self-Drilling Screws also called dovetail screws , is a  self-tapping screw with a drilling tail , which can be drilled by itself when in use , without the need for pre-drilling . Widely used in steel structure color steel tile fixing, building sheet fixing and other fields . The self-Drilling screws has higher surface hardness and core hardness than the self-tapping screws , and can be used for multiple drilling.

产品信息

Productname: Cross Recessed Pan Head Self-Drilling Screws

surface hardness: min HV450

core hardness: HRC28-38

Surface treatment：Color-Plated zinc 

Material: Carbon Steel

Specification: ST3.5 - ST6.3

Standard: GB/T 15856.2 DIN EN ISO 15482

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]]> https://jlhbfastener.com/zh/product/cross-recessed-pan-head-self-drilling-screws/ Mon, 20 Jan 2025 03:01:34 +0000 https://jlhbfastener.com/?post_type=product&p=408 产品介绍

Self-Drilling Screws also called dovetail screws , is a  self-tapping screw with a drilling tail , which can be drilled by itself when in use , without the need for pre-drilling . Widely used in steel structure color steel tile fixing, building sheet fixing and other fields . The self-Drilling screws has higher surface hardness and core hardness than the self-tapping screws , and can be used for multiple drilling.

产品信息

Productname: Cross Recessed Pan Head Self-Drilling Screws

surface hardness: min HV450

core hardness: HRC28-38

Surface treatment：Color-Plated zinc 

Material: Carbon Steel

Specification: ST3.5 - ST6.3

Standard: GB/T15856.1 DIN15481

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]]> https://jlhbfastener.com/zh/product/hexagon-flange-head-self-drilling-screws/ Mon, 13 Jan 2025 02:43:40 +0000 https://jlhbfastener.com/?post_type=product&p=403 产品介绍

Self-Drilling Screws also called dovetail screws , is a  self-tapping screw with a drilling tail , which can be drilled by itself when in use , without the need for pre-drilling . Widely used in steel structure color steel tile fixing, building sheet fixing and other fields . The self-Drilling screws has higher surface hardness and core hardness than the self-tapping screws , and can be used for multiple drilling.

产品信息

Productname: Hexagon Flange Head Self-Drilling Screws

surface hardness: min HV450

core hardness: HRC28-38

Surface treatment：Color-Plated zinc 

Material: Carbon Steel

Specification: ST3.5 - ST6.3

Standard:  GB/T 15856.4

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