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Standard

Grain Flow Pattern for Bolts and Screws

2019-03-14
CURRENT
USCAR8-4
This specification covers the grain flow pattern requirements in headed bolts, screws, and studs. The heading practice in the manufacture of the bolt, screw, or stud sets the grain flow pattern, but it is also greatly influenced by the fastener design.
Standard

Avoidance of Hydrogen Embrittlement of Steel

2019-02-27
CURRENT
USCAR5-5
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and defines the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process. Hydrogen embrittlement of steel, which can cause brittle fractures under stress, occurs as a result of the absorption of hydrogen during cleaning, phosphate coating and plating processes. The susceptibility to hydrogen embrittlement increases with increasing stress (internal or externally applied stress) and increasing material strength. Hardness readings in this specification are in Vickers scale. SAE J417 should be referred to for conversion to other scales.
Standard

Test Procedures for Evaluating Bolt-Load Retention of Magnesium Alloy

2018-11-02
WIP
USCAR35-1
1.1 A bolt-load retention (BLR) test is a practical test to determine the bolt load of a fastener joint with time and at given temperatures. There are three types of BLR tests described in this standard, namely general-purpose test, design-purpose test, and screening material test. A general-purpose BLR test may be used for screening materials, while a design-purpose BLR test is usually used to verify the BLR behavior of a specific joint. The screening material test is an example of the general-purpose test for typical automotive applications. 1.2 The test procedures provides guidance in the following areas: (a) BLR sample and test fixture, (b) test fastener, washer and nut, (c) bolt-load measurement and data acquisition, (d) heating device, (e) initial loading, (f) baseline test, and (g) instrumentation of strain gages and calibration (see Appendix B).
Standard

Performance Specification for Automotive Wire Harness Retainer Clips

2017-05-10
CURRENT
USCAR44
This specification describes a method and acceptance criteria for testing automotive wire harness retainer clips. Retainer clips are plastic parts that hold a wire harness or electrical connector in a specific position. Typical plastic retainers work by having a set of "branches" that can be inserted into a hole sized to be easy to install but provide acceptable retention. This specification tests retainer clips for mechanical retention when exposed to the mechanical and environmental stresses typically found in automotive applications over a 15-year service life. This specification has several test options to allow the test to match to the expected service conditions. The variability of applications typically arises a) from different ambient temperatures near the clip, different proximity to automotive fluids, different exposure to standing water or water spray and different thicknesses of the holes that the clip is inserted into.
Standard

USCAR17 Supplement

2016-07-21
CURRENT
USCAR18-4
This document is a supplement to SAE/USCAR 17 and is intended to give recommended usages for one and two-way RF connectors and dimensional requirements for 2-way RF connectors and hybrid (RF & DC power) connectors which are not currently specified elsewhere. The radio frequency (RF) connector interface specified herein is suited for unsealed and sealed automobile applications up to 6 GHz and is intended for in-line, board mount, device mount, straight or angled applications. Dimensional requirements are specified in this document to ensure interchangeability. Compliance with the dimensional requirements of this specification will not guarantee interoperability between different suppliers mating connectors. It is the supplier responsibility to ensure RF performance requirements are met with other suppliers mating connectors. Performance requirements are specified in SAE/USCAR-2, and in SAE/USCAR-17.
Standard

PERFORMANCE SPECIFICATION FOR CABLE-TO-TERMINAL ELECTRICAL CRIMPS

2014-12-01
CURRENT
USCAR21-3
This specification defines test methods and requirements for validation of solderless crimped connections. The purpose of this test is to simulate in the lab the stress seen in a typical life (15 years and 150,000 miles) for a crimp connection and assure the crimp is mechanically strong and electrically stable. This specification was developed for use with stranded automotive copper wire. Only where specifically mentioned are other constructions or other core materials (aluminum, clad, steel core, etc.) applicable. This specification does not apply to wire types not mentioned. This specification is based on accepted levels of environmental exposure for automotive applications.
Standard

Grain Flow Pattern for Bolts, Screws, and Studs

2013-12-31
USCAR8-3
This specification covers the grain flow pattern requirements in headed bolts, screws, and studs. The heading practice in the manufacture of the bolt, screw, or stud sets the grain flow pattern, but it is also greatly influenced by the fastener design.
Standard

Dimensional and Performance Specification for After-Market Gasoline Engine Oil Filters

2013-01-30
CURRENT
USCAR36
This specification defines the dimensional and performance requirements for aftermarket spin-on oil filters intended for use on gasoline engines. Filters meeting this specification may also be suitable for use on some diesel applications. Filters meeting these dimensional limits are intended to meet the oil filter fit and package requirements for engine and vehicle designs. Filters meeting the performance requirements are intended to maintain sufficient durability to support many of the OEM's recommended oil change intervals. Some OEM engines may require special filters for which this specification would not support.
Standard

DEEMBRITTLEMENT VERIFICATION TEST

2012-07-30
CURRENT
USCAR7-1
This standard outlines test methods and practices which can detect embrittlement of steel parts. It is a process control or referee verification test. The risk of embrittlement of steel is minimized by using best practices in the finishing/coating process. One such practice is described in SAE/USCAR-5, Avoidance of Hydrogen Embrittlement of Steel.
Standard

SPECIFICATION FOR TESTING AUTOMOTIVE LAMP ASSEMBLIES

2009-11-15
CURRENT
USCAR34
The procedures contained in this specification cover the laboratory testing of Exterior Lamps for use in automotive road illumination. The following tests are intended to be run under the following conditions. This document shall be applied to systems that meet the requirements for design, performance and validation established by government standards. If other manufacture’s components are intended to be approved for use in the lamp assembly, then those possible combinations of components shall be considered a new lamp assembly and shall also be tested.
Standard

WIRING COMPONENT DESIGN GUIDELINES

2009-07-10
HISTORICAL
USCAR12-3
This document gives general guidelines to be used during the connector design stage. Various guidelines may not apply in all situations. Therefore, sound engineering judgment must be used in their application. Consider these guidelines as the basis for connector and wiring DFMEA’s. Items in this document are grouped by DFMEA functional requirements. Groups are as follows: A Electrical Continuity B Electrical Isolation/Sealing C Device Assembly D Harness Assembly E Vehicle Assembly F Materials G Serviceability H Environmental Requirements I High Voltage (≥ 60V) Application Requirements
Standard

AVOIDANCE OF HYDROGEN EMBRITTLEMENT OF STEEL

2008-06-01
HISTORICAL
USCAR5-4
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and define the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process.
Standard

AVOIDANCE OF HYDROGEN EMBRITTLEMENT OF STEEL

2008-06-01
HISTORICAL
USCAR5-3
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and define the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process. Hydrogen embrittlement of steel, which can cause brittle fractures under stress, occurs as a result of the absorption of hydrogen during cleaning, phosphate coating and plating processes. The susceptibility to hydrogen embrittlement increases with increasing stress (internal or externally applied stress) and increasing material strength. Hardness readings in this specification are in Vickers scale. SAE J417 should be referred to for conversion to other scales.
Standard

TEST PROCEDURES FOR EVALUATING BOLT-LOAD RETENTION OF MAGNESIUM ALLOYS

2007-10-08
CURRENT
USCAR35
A bolt-load retention (BLR) test is a practical test to determine the bolt load of a fastener joint with time and at given temperatures. There are three types of BLR tests described in this standard, namely general-purpose test, design-purpose test, and screening material test. A general-purpose BLR test may be used for screening materials, while a design-purpose BLR test is usually used to verify the BLR behavior of a specific joint. The screening material test is an example of the general-purpose test for typical automotive applications.
Standard

TEST FOR EVALUATING THE TORQUE-TENSION RELATIONSHIP OF BOTH EXTERNAL AND INTERNAL METRIC THREADED FASTENERS

2007-04-05
CURRENT
USCAR10-2
This standard provides a test method for determining the torque-tension relationship of both external and internal metric threaded fasteners for the purpose of measuring the frictional characteristics of the threaded fasteners. The results obtained by this test are relevant to the test conditions only and should not be utilized for specific applications.
Standard

Grain Flow Pattern for Bolts, Screws, and Studs

2007-03-13
USCAR8-2
This specification covers the grain flow pattern requirements in headed bolts, screws, and studs. The heading practice in the manufacture of the bolt, screw, or stud sets the grain flow pattern, but it is also greatly influenced by the fastener design.
Standard

TORQUE-TENSION TESTING AND EVALUATION OF FASTENER FINISHES

2007-03-01
CURRENT
USCAR11-1
This standard provides a test method for determining the torque-tension relationship of a fastener finish as applied to a surrogate screw for the purpose of measuring the frictional characteristic of the fastener finish. The results obtained by this test shall be used as a process control attribute of the fastener finish and shall not be utilized for specific applications.
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