Fastener Innovation Technology, Inc.

NVLAP Lab Code: 200179-0

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Fasteners & Metals

Dimensional Inspection

• Dimensions of fasteners - flange screw heads and flange nuts

[FA/712] IFI-111
Hex Flange Screws

[FB/1139] IFI-115
Flange 12-Point Screws

• Dimensions of fasteners - hexagon and double hexagon (12 point) and spline sockets

[FA/411] ANSI/ASME B18.3
Socket Cap, Shoulder and Set Screws (Inch Series)

[FB/1140] ANSI B18.2.1
Square and Hex Bolts and Screws - Inch Series

[FB/1257] ANSI/ASME B18.6.4
Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws (Inch Series)

• Dimensions of fasteners - straightness

[FA/423] ANSI/ASME B18.2.1
Square and Hex Bolts and Screws - Inch Series

• External thread parameters - system 21

[FA/380] FED-STD-H28/20
Screw Thread Standards for Federal Services, Section 20 Inspection Methods for Acceptability of UN, UNR, UNJ, M, and MJ Screw-Threads

[FA/533] SAE AS 8879
SAE Aerospace Standard (AS) for Screw Threads - UNJ Profile, Inch

• External thread parameters - system 22

[FA/382] FED-STD-H28/20
Screw Thread Standards for Federal Services, Section 20 Inspection Methods for Acceptability of UN, UNR, UNJ, M, and MJ Screw-Threads

• External thread parameters - system 23

[FA/386] FED-STD-H28/20
Screw Thread Standards for Federal Services, Section 20 Inspection Methods for Acceptability of UN, UNR, UNJ, M, and MJ Screw-Threads

[FA/535] SAE AS 8879
SAE Aerospace Standard (AS) for Screw Threads - UNJ Profile, Inch

• Surface texture

[FA/439] ASME B46.1
Surface Texture (Surface Roughness, Waviness, and Lay)

Mechanical and Physical Testing and Inspection

• Adhesion of metallic coatings on fasteners

[FB/1311] SAE AMS-C-8837
SAE Aerospace Material Specification for vacuum-deposited cadmium coating Sec. 4.6.3.

• Axial tensile strength of full-size threaded fasteners

[FA/266] ASTM F606
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Sections 3.4.1 through 3.4.3: Axial Tension Testing of Full Size Products

[FA/799] NASM 1312-8
Fastener Test Methods, Method 8, Tensile Strength

• Copper sulfate test - test for free iron on the surface of corrosion resistant fasteners

[FA/499] ASTM A380
Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems

• Double shear of externally threaded fasteners

[FA/880] NASM 1312-13
Fastener Test Methods, Method 13, Double Shear Test

• Elevated temperature testing capability

[FB/1158] NASM 1312-18
Fastener Test Methods, Method 18, Elevated Temperature Testing Tensile Testing

• Fatigue of full-size threaded fasteners

[FA/876] NASM 1312-11
Fastener Test Methods, Method 11, Tension Fatigue

• Hydrogen embrittlement (stress durability) of externally threaded fasteners

[FA/875] NASM 1312-5
Fastener Test Methods, Method 5, Stress Durability

• Hydrogen embrittlement (stress durability) of internally threaded fasteners

[FA/800] QQ-P-416
Federal Specification for Plating, Cadmium (Electrodeposited)

[FB/1033] NASM 1312-14
Fastener Test Methods, Method 14, Stress Durability - Internally Threaded Fasteners

• Magnetic permeability

[FA/214] ASTM A342/A342M-04
Standard Test Methods for Permeability of Feebly Magnetic Materials, Test Method 3, Low-Mu Permeability Indicator Method of Test, Sections 17-21

• Measurement of fastener coating thickness - dimensional change method

[FA/874] NASM 1312-12
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

• Measurement of fastener coating thickness - microscopical method

[FA/873] NASM 1312-12
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

• Microhardness of fasteners

[FA/189] ASTM E384
Standard Test Method for Microhardness of Materials

[FA/877] NASM 1312-6
Fastener Test Methods, Method 6, Hardness

• Permanent set test of self-locking nuts

[FB/1209] NASM 8922
General Specification for Nuts, Alloy Steel, Shear and Tensile, Self-Locking; (180 KSI Ftu 450°F)

[FB/1291] NASM 25027
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

• Proof load of full-size externally threaded fasteners

[FB/1323] SAE AS 7472
Bolts and Screws, Steel, Corrosion Resistant 125,000 PSI Tensile Roll Threaded

[FB/1333] FIT-QCP-109/20
Proof Load Testing

• Push out test of floating plate nuts, gang channel nuts, and anchor nuts

[FB/1293] NASM 25027
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

[FB/1294] NASM 1312-22
Fastener Test Methods, Method 22, Receptacle Push-Out

[FB/1335] FIT-QCP-109/36
Push Out Test Procedure

• Recess strength test in both the installation and removal directions

[FA/886] NASM 1312-25
Fastener Test Methods, Method 25, Driving Recess Torque Quality Conformance Test

• Reusability test of self-locking internally threaded fasteners

[FB/1211] NASM 8922
General Specification for Nuts, Alloy Steel, Shear and Tensile, Self-Locking; (180 KSI Ftu 450°F)

[FB/1287] NASM 25027
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

• Rockwell hardness of fasteners

[FA/197] ASTM E18 (A, B, & C)
Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials

[FA/878] NASM 1312-6
Fastener Test Methods, Method 6, Hardness

• Rockwell superficial hardness of fasteners

[FB/1004] NASM 1312-6
Fastener Test Methods, Method 6, Hardness

• Salt spray testing of fasteners

[FA/166] ASTM B117
Standard Test Method of Salt Spray (Fog) Testing

[FB/1032] NASM 1312-1
Fastener Test Methods, Method 1, Salt Spray

• Single shear of externally threaded fasteners

[FA/879] NASM 1312-20
Fastener Test Methods, Method 20, Single Shear

• Stress rupture of fasteners

[FA/881] NASM 1312-10
Fastener Test Methods, Method 10, Stress Rupture

• Tension testing of machined specimens from externally threaded fasteners

[FA/475] ASTM E8
Standard Test Methods for Tension Testing of Metallic Materials

• Test for embrittlement of metallic coated externally threaded fasteners

[FB/1034] NASM 1312-5
Fastener Test Methods, Method 5, Stress Durability

[FB/1332] FIT-QCP-109/6
Hydrogen Embrittlement/Stress Durability Testing Procedure

• Torque-out test

[FB/1295] NASM 25027
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

[FB/1296] NASM 1312-24
Fastener Test Methods, Method 24, Receptacle Torque-Out

[FB/1334] FIT-QCP-109/35
Torque Out Test Procedure

• Wedge tensile strength of full-size threaded fasteners

[FA/289] ASTM A370
Standard Test Method and Definitions for Mechanical Testing of Steel Products, Annex A3 - Steel Fasteners, Section A3.2.1.5: Tension Testing of Full Size Bolts with a Wedge, and Section A3.2.1.6: Wedge Testing of HT Bolts Threaded to Head

[FA/290] ASTM F606
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Section 3.5: Wedge Tension Testing of Full Size Bolts

• Wrench torque test of externally wrenched nuts of spline and hexagon and double hexagon (1

[FB/1213] NASM 8922
General Specification for Nuts, Alloy Steel, Shear and Tensile, Self-Locking; (180 KSI Ftu 450°F)

[FB/1288] NASM 25027
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

[FB/1297] NASM 1312-31
Fastener Test Methods, Method 31, Torque

• Yield strength of full-size externally threaded fasteners

[FA/593] ASTM E8
Standard Test Methods for Tension Testing of Metallic Materials

[FB/1045] NASM 1312-8
Fastener Test Methods, Method 8, Tensile Strength

Metallography

• Decarburization and case depth measurement in fasteners

[FA/323] ASTM E1077
Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens

• Determination of grain size of fasteners

[FA/331] ASTM E112
Standard Test Methods for Determining Average Grain Size

• Macroscopic examination of fasteners by etching

[FA/511] ASTM E340
Standard Test Method for Macroetching Metals and Alloys

• Microscopic examination of fasteners by etching

[FA/512] ASTM E407
Standard Practice for Microetching Metals and Alloys

• Surface discontinuities of externally threaded fasteners

[FA/357] ASTM F788/788M
Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series

• Surface discontinuities of internally threaded fasteners

[FB/1298] NASM 8922
General Specification for Nuts, Alloy Steel, Shear and Tensile, Self-Locking; (180 KSI Ftu 450°F)

[FB/1299] NASM 25027
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

Nondestructive Inspection

• Liquid penetrant inspection of fasteners

[FA/527] ASTM E1417
Standard Practice for Liquid Penetrant Examination

• Magnetic particle inspection of fasteners

[FA/485] ASTM E1444
Standard Practice for Magnetic Particle Inspection

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Date created: July 26, 2002
Last Updated: November 1, 2009

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