Nuts

Part Number	Description / PDF	Quantity
M3561-AL RAF	8MM RD X 6MM X M3	418
0800632TNAB Richco, Inc. (Essentra Components)	THUMB NUT, KNURLED, #6-32 THREAD	3490
1504097 Phoenix Contact	HEX NUT BRASS M16	33774902
04M320150WFHN Richco, Inc. (Essentra Components)	HEX FLANGE NUT, M32 X 1.5 THREAD	1000
0475010HJN Richco, Inc. (Essentra Components)	HEX JAM NUT 3/4-10 THREAD .250 H	878
8-32 AJ 6 APM Hexseal	HEX SEAL NUT 11/32" STEEL 8-32	89
BGN-C Panduit Corporation	LOCK NUT 0.380" 12-24	55
5205821-2 TE Connectivity AMP Connectors	HEX NUT 0.184" STEEL 4-40	52204
0637524DECOWN Richco, Inc. (Essentra Components)	DECO WING NUT 3/8-24 THREAD 29/6	1000
0501032LCNB Richco, Inc. (Essentra Components)	LOCKING CAP NUT, #10-32 THREAD,	500
05M080125CNB Richco, Inc. (Essentra Components)	CAP NUT M8 X 1.25 THREAD 15.0 HE	0
SSNUT62-C Panduit Corporation	STAINLESS STEEL, 5/8-11 HEX NUT	0
7211 887 Altech Corporation	PG29 LOCKNUTLT GRAYPA	468260
06M060100DWN Richco, Inc. (Essentra Components)	DECO WING NUT M6 X 1 THREAD 13.4	850
HNZ 440 B&F Fastener Supply	HEX NUT 1/4" 4-40	17100
7211 860 Altech Corporation	PG48 LOCKNUT BLACKPA	16685
04M025045HN Richco, Inc. (Essentra Components)	HEX NUT, NATURAL, NYLON, M2.5 X	19406
1416011 Phoenix Contact	HEX NUT 32.0MM BRASS NPT-3/4"	50
7216-SS RAF	9/16HD X 3/8 X 1/4-20 THD	394
05M060100LCN Richco, Inc. (Essentra Components)	LOCKING CAP NUT M6 X 1 THREAD 12	1000

Nuts

1. Overview

Nuts are threaded fasteners with internal threads designed to mate with bolts or screws to secure mechanical components. As critical elements in assembly systems, nuts provide removable joints that maintain structural integrity under various operational conditions. Their importance spans across industries requiring precision engineering, vibration resistance, and load-bearing capabilities.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Hex Nuts	Standard six-sided design with coarse/fine threads, economical and versatile	General machinery assembly
Lock Nuts	Integrated anti-loosening features (nylon insert, distorted thread)	Automotive powertrain systems
Flange Nuts	Integrated washer face reduces surface pressure	Sheet metal applications
Weld Nuts	Projection weld design for permanent metal joining	Steel structure fabrication
Cap Nuts	Protective enclosure for threaded ends	Exterior architectural components

3. Structure and Composition

Typical nut configurations feature a prismatic or cylindrical body with chamfered corners. Key structural elements include:

Hexagonal wrenching surfaces (90% of standard nuts)
Internal ISO metric or Unified thread profiles
Material compositions: Carbon steel (8.8-12.9 grade), Stainless Steel (A2/A4), Brass, Aluminum
Surface treatments: Zinc plating, Geomet coating, Dacromet

4. Key Technical Specifications

Parameter	Importance
Tensile Strength (800-1200 MPa)	Determines load capacity in clamping applications
Hardness (HRC 20-39)	Affects wear resistance and torque performance
Thread Class (6H, 4H)	Defines fit precision with mating bolts
Vibration Resistance	Critical for dynamic load applications
Corrosion Resistance	Measured via salt spray testing ( 72h)

5. Application Fields

Automotive: Engine assembly, chassis systems
Aerospace: Aircraft engine mounts, landing gear
Construction: Steel frame connections, bridge structures
Electronics: PCB mounting, enclosure assembly
Renewable Energy: Wind turbine tower connections

6. Leading Manufacturers and Products

Manufacturer	Representative Products
ITW Shakeproof	Nord-Lock wedge-locking washers and nuts
PEM	SF series flush weld nuts
Hilti	IN fastening systems for concrete applications
Yamawa	High-precision JIS standard nuts

7. Selection Recommendations

Key selection criteria:

Material compatibility with mating bolt (e.g., A2 stainless nut with A2 bolt)
Environmental factors: Temperature range (-50 C to +300 C), chemical exposure
Torque requirements: Proof load specifications
Case Study: Wind turbine tower connections require M64 10.9 grade nuts with 10 m zinc coating

Industry Trends Analysis

Current development directions include:

Advanced materials: Carbon fiber-reinforced polymer nuts for weight reduction
Smart fasteners: Integrated strain sensors for real-time load monitoring
Manufacturing innovation: Cold forming processes achieving G05 dimensional accuracy
Sustainability: Bio-based coatings replacing traditional zinc plating