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INDUSTRIAL FASTENER

Hex Bolts & Nuts

Hex bolts and nuts for industrial applications

Hex bolts and matching nuts for industrial equipment, piping supports, mechanical assemblies, maintenance, fabrication and general engineering applications. Available in carbon steel, alloy steel and stainless steel with project-specific dimensions, grades and finishes.

Fastener Type Hex Bolt

Nut Type Hex Nut

Materials CS · Alloy · SS

Finish Plain · Zinc · Coated

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PRODUCT OVERVIEW

Hex bolting for industrial assemblies

Hex bolts are externally threaded fasteners with a hexagonal head designed for installation using a wrench or suitable tightening tool. They are widely used for mechanical assemblies, equipment mounting, fabrication, piping supports and general industrial applications.

Hex bolts can be supplied with matching hex nuts in carbon steel, alloy steel and stainless steel grades. The appropriate combination depends on the required strength, service environment, corrosion resistance and applicable project specification.

Common requirements include carbon steel bolts with matching nuts for general industrial service and stainless steel fasteners for applications requiring increased corrosion resistance.

Rhevon can source hex bolts and matching nuts as complete sets or as individual components according to size, grade, thread, finish and quantity.

PRODUCT TYPE Hex Bolts & Nuts

Standard and project-specific fasteners for industrial, mechanical, piping and fabrication applications.

CONFIGURATIONS

Hex bolt and nut configurations

Fasteners can be supplied in different material grades, thread configurations, dimensions and surface finishes according to the application and purchase specification.

Carbon Steel Hex Bolts & Nuts

General-purpose carbon steel fasteners for equipment, fabrication, piping supports, maintenance and industrial assemblies.

Bolt Carbon Steel

Nut Matching Grade

Finish Plain / Zinc Plated

High-Strength Hex Bolts

High-strength bolting for applications where increased mechanical performance is required. Grade and nut combination can be supplied to project specification.

Bolt High-Strength Grade

Nut Matching Nut Grade

Application Heavy Industrial

Stainless Steel Hex Bolts & Nuts

Stainless steel fasteners for applications where corrosion resistance and material compatibility are important.

Bolt SS304 / SS316

Nut Matching SS Grade

Application Corrosive Environments

Metric Hex Bolts & Nuts

Metric fasteners for equipment, machinery, fabrication and general engineering requirements.

Size M6 – M20+

Thread Metric

Finish Plain / Zinc / Coated

MATERIALS & GRADES

Hex bolt and nut materials

Fastener grades are selected according to the required mechanical properties, environmental conditions and applicable project or engineering specification.

Bolt / Screw Grade	Nut Specification	Material	Typical Application
ASTM A307	Matching Carbon Steel Nut	Carbon Steel	General Industrial Service
ASTM F3125 Grade A325	ASTM A563 / Compatible Nut	High-Strength Steel	Structural / Heavy-Duty Applications
Stainless Steel	Matching Stainless Nut	SS304	Corrosion-Resistant Applications
Stainless Steel	Matching Stainless Nut	SS316	More Corrosive Environments

DIMENSIONAL DATA

Heavy hex bolt and nut dimensions

Converted inch-series reference geometry for heavy hex bolts and nuts.

Heavy hex bolt dimensional drawing — TECHNICAL DRAWINGS **Heavy hex bolt and nut reference geometry** Drawing symbols correspond with the dimensional tables below. Reference geometry is not to scale.

Heavy hex nut dimensional drawing — TECHNICAL DRAWINGS **Heavy hex bolt and nut reference geometry** Drawing symbols correspond with the dimensional tables below. Reference geometry is not to scale.

REV 03 DIMENSIONAL REFERENCE ASME B18.2.1 and ASME B18.2.2 - Catalog page 20. Company-source dimensions are shown to 0.01 mm unless noted.

Heavy hex bolt and nut geometry

AF = width across flats; k = bolt head height; m = nut thickness

Swipe horizontally to view every column.

`d`(mm)	`AF`min(mm)	`AF`max(mm)	`k`bolt min(mm)	`k`bolt max(mm)	`m`nut min(mm)	`m`nut max(mm)
12.70	21.59	22.23	7.67	9.25	11.79	12.80
15.88	26.19	26.97	9.60	11.28	14.91	16.03
19.05	30.78	31.75	11.56	13.31	18.03	19.25
22.23	35.41	36.53	13.49	15.34	21.16	22.48
25.40	40.01	41.28	15.01	17.78	24.28	25.70
28.58	44.60	46.02	16.71	19.81	27.41	28.93
31.75	49.23	50.80	19.02	22.25	30.15	31.78
34.93	53.82	55.58	20.57	23.88	33.27	35.00
38.10	58.42	60.33	22.91	26.31	36.40	38.23

Catalog notes

Bolt length L is measured from under the head to the end. Thread series and class must match the nut.

These converted inch-series values are selection references, not independent inspection tolerances; obtain the approved drawing and purchase specification.

TECHNICAL PARAMETERS

Hex bolt & nut specifications

Fastener Type Hex Bolt

Nut Type Hex Nut

Materials Carbon Steel · Alloy · Stainless Steel

Thread UNC · UNF · Metric

Size Range Project Specific

Finish Plain · Zinc Plated · Coated

Head Hexagonal

Supply Bolts · Nuts · Complete Sets

APPLICATIONS

Typical industrial applications

Industrial Equipment

Piping Supports

Mechanical Assemblies

Fabrication

Plant Maintenance

Structural Assemblies

Machinery

General Engineering

QUALITY & DOCUMENTATION

Fasteners supplied to your specification

Hex bolts and nuts can be inspected and documented according to the applicable purchase specification, material standard and project requirements.

01 Material grade verification

02 Dimensional inspection

03 Bolt diameter and length verification

04 Thread inspection

05 Head and nut dimensions verification

06 Surface finish verification

07 Marking and traceability

08 MTC / inspection documentation where required

FOR PROCUREMENT TEAMS

Information required for quotation

Providing the following information helps us identify the correct hex bolt and nut combination for your requirement.

01 · Fastener Type Hex Bolt + Hex Nut

02 · Diameter Nominal Diameter

03 · Length Required Bolt Length

04 · Grade Required Bolt Grade

05 · Nut Grade Matching Nut Specification

06 · Thread UNC / UNF / Metric

07 · Finish Plain / Zinc / Coated

08 · Quantity Required Quantity

FREQUENTLY ASKED QUESTIONS

Hex Bolt & Nut FAQ

Common procurement questions about hex bolts, nuts, grades, dimensions and finishes.

Hex bolts are widely used for industrial equipment, machinery, fabrication, piping supports, maintenance work and general mechanical assemblies. The appropriate bolt grade and dimensions depend on the application and project specification.

Yes. Hex bolts can be supplied together with matching nuts as complete sets. Washers can also be included where specified in the purchase requirement.

Yes. Stainless steel hex bolts and matching nuts can be supplied in commonly specified grades such as SS304 and SS316, subject to size, quantity and application requirements.

A typical enquiry should include bolt diameter, length, material or grade, thread specification, nut requirement, finish and quantity. A drawing, specification or existing part reference can also be provided where available.

Yes. Hex bolts, nuts and washers can be included in the same enquiry as flanges, gaskets and pipe fittings. This allows procurement teams to consolidate multiple piping component requirements into a single RFQ.

HAVE A FASTENER REQUIREMENT?

Need hex bolts and nuts?

Share the size, length, grade, thread, finish and quantity. You can also send your complete piping requirement through a single RFQ.

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