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GB/T 35478-2017 English PDF

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GB/T 35478-2017: Fastener -- Steel bolts, screws and studs with polyamide locking pre-coating technical specification
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 35478-2017	English	199	Add to Cart	3 days [Need to translate]	Fastener -- Steel bolts, screws and studs with polyamide locking pre-coating technical specification	Valid	GB/T 35478-2017

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Basic data

Standard ID	GB/T 35478-2017 (GB/T35478-2017)
Description (Translated English)	Fastener -- Steel bolts, screws and studs with polyamide locking pre-coating technical specification
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J13
Classification of International Standard	21.060.10
Word Count Estimation	10,173
Date of Issue	2017-12-29
Date of Implementation	2018-07-01
Regulation (derived from)	National Standards Bulletin 2017 No. 32
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35478-2017: Fastener -- Steel bolts, screws and studs with polyamide locking pre-coating technical specification

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Fastener - Steel bolts, screws and studs with polyamide locking pre-coating technical specification ICS 21.060.10 J13 National Standards of People's Republic of China Fasteners Bolts, screws and stud pre-coated Polyamide locking layer technical conditions Fastener-Steelbolts, screwsandstudswithpolyamidelockingpre-coating 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Machinery Industry Federation. This standard by the National Standardization Technical Committee fasteners (SAC/TC85) centralized. This standard is drafted by. Machine Productivity Promotion Center. Participated in the drafting of this standard. Screw-down (Kunshan) Co., Ltd., General Machinery Industry General Product Quality Supervision and Inspection Center, heavy Qing Changan Automobile Co., Ltd., Zhejiang State Inspection and Testing Technology Co., Ltd., Zhejiang New Oriental Auto Parts Co., Ltd., Guangzhou Automobile Automotive Group Co., Ltd. Automotive Engineering Research Institute. This standard by the National Standardization Technical Committee fasteners responsible for the interpretation. Fasteners Bolts, screws and stud pre-coated Polyamide locking layer technical conditions

1 Scope

This standard specifies the bolts, screws and studs (hereinafter referred to as external thread fasteners) pre-coated reusable polyamide locking layer (the following Jane Known as locking layer) terminology, pre-coating size, performance requirements and test methods. This standard applies to threads in line with GB/T 193, thread size M3 ~ M18, coarse thread and thread nominal diameter d = 8mm ~ 18mm, fine thread. This standard applies to comply with the provisions of GB/T 3098.1 made of carbon steel or alloy steel, and in line with the provisions of GB/T 3098.6 by Male threaded fasteners made of stainless steel.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 97.1 flat washers A level GB/T 3098.1 fasteners mechanical properties of bolts, screws and studs GB/T 3098.6 mechanical properties of fasteners stainless steel bolts, screws and studs GB/T 5277 fastener bolts and screw through holes GB/T 5783 hex bolts full thread GB/T 6170 Type 1 hex nuts

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Polyamide locking layer polyamidelockingcoating Polyamide Adhesive to Prevent Loosening of Male Threaded Fasteners. The adhesive layer may be applied over the entire circumference (R) or topically (F). 3.2 Screw in torque-in torque Tin Torque measured when male threaded fastener is screwed into nut specimen. 3.3 Tightening torque tighteningtorque TA Torque applied to the nut or male fastener head when tightened. 3.4 Unscrew the torque looseningtorque Tout Unscrew the male threaded fastener until the axial load is removed and continue to unscrew to the maximum torque measured at the disengagement locking layer engagement area.

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