► Bremick | High Tensile Bolts

High-Strength Fastening for Trade & Industrial Applications Bremick High Tensile Bolts provide high-strength fastening options for Australian construction, fabrication, machinery, maintenance & industrial applications where the specified bolt property class matters. Bremick's current bolt range includes Grade 8.8 AS1110 & Grade 10.9 fasteners, with Grade 8.8 also represented across selected...

High-Strength Fastening for Trade & Industrial Applications

Bremick High Tensile Bolts provide high-strength fastening options for Australian construction, fabrication, machinery, maintenance & industrial applications where the specified bolt property class matters.

Bremick's current bolt range includes Grade 8.8 AS1110 & Grade 10.9 fasteners, with Grade 8.8 also represented across selected structural assemblies, flange purlins & hold-down bolts.

Grade 8.8 & Grade 10.9 are metric bolt property classes used to identify defined mechanical characteristics. They should be selected according to the engineering specification, equipment requirements or applicable standard rather than simply choosing the highest available class.

For high-strength hex-head fastening, start with Hex Bolts. Projects involving engineered steel connections can also move into Structural Fasteners & Bolts where the connection specification requires a structural fastening system.

What Are High Tensile Bolts?

High tensile bolts are higher-strength threaded fasteners manufactured to defined mechanical property requirements.

Unlike generic descriptions such as "heavy duty", property classes provide measurable specification information. For metric high tensile bolts, 8.8 & 10.9 are commonly recognised property-class designations.

Bremick currently lists Grade 8.8 hex-head bolts to AS1110 plus Grade 10.9 products within its bolt range.

Correct selection involves more than bolt strength.

Confirm:

► Property class
► Bolt diameter
► Bolt length
► Thread pitch
► Thread system
► Head configuration
► Finish
► Nut compatibility
► Washer requirements
► Joint specification
► Installation procedure

A bolt that physically fits the hole is not automatically suitable for the connection.

For a practical overview of fastening families, read Fastener Guide: Bolts, Screws & Anchors.

Why Choose Bremick High Tensile Bolts?

Bremick supplies fasteners across Australian & New Zealand building, construction & industrial markets, with technical resources supporting product identification & application selection.

Within the current Bremick bolt range, high-strength options include Grade 8.8 & Grade 10.9 products across relevant bolt families.

► Grade 8.8 options – Available for applications specified around this metric property class.
► Grade 10.9 options – Higher property-class options are available within relevant Bremick bolt families.
► AS1110 products – Bremick identifies Grade 8.8 hex-head bolts under AS1110.
► Multiple finishes – Selected Grade 8.8 metric products are listed in plain, zinc & galvanised configurations.
► Metric fine options – Selected Grade 8.8 products are also represented in metric fine configurations.
► Structural coverage – Bremick separately identifies AS1252 structural assemblies within its broader bolt range.

This distinction matters. General high tensile bolts & structural bolt assemblies should not be treated as interchangeable product categories. The required fastening system must come from the connection specification.

For compatible fastening hardware, Hex Nut provides a logical cross-sell where the specified assembly requires a separate nut.

Common Applications

High tensile bolts can be specified across demanding fastening environments including:

► Machinery assembly
► Industrial equipment
► Steel fabrication
► Mechanical maintenance
► Plant repairs
► Equipment mounting
► Construction
► Workshop fabrication
► Agricultural equipment
► Automotive & mechanical applications
► Selected hold-down connections
► Selected steelwork connections

Application alone does not determine bolt grade.

Two visually similar connections can require different property classes, finishes, tightening procedures or fastening systems.

For that reason, trade buyers should work from drawings, manufacturer instructions, engineering documentation or applicable standards wherever the connection is specification-critical.

Where load distribution or assembly design requires a washer, explore Flat Washer.

Product Selection Guide

Confirm the Required Property Class

Start with the specified bolt grade.

Grade 8.8 & Grade 10.9 are not interchangeable labels for the same product. They identify different metric mechanical property classes.

Never upgrade or downgrade a specified bolt purely because another grade is physically available.

Where the original fastener is being replaced, check:

► Head markings
► Equipment documentation
► Engineering drawings
► Thread specification
► Original dimensions
► Applicable standard
► Manufacturer requirements

Check Diameter & Length

Correct diameter is essential for the intended hole, mating component & joint geometry.

Length must also suit the assembly.

Too little usable thread engagement can compromise the connection while unnecessary excess length can create clearance or installation issues.

Order from measured or specified dimensions rather than visual estimation.

Identify the Thread

High tensile bolts can exist across different thread configurations.

Confirm:

► Metric coarse
► Metric fine
► Required pitch
► Mating nut thread

Never force incompatible threads together.

A bolt with the correct nominal diameter but incorrect pitch is still the wrong fastener.

Select the Required Finish

Bremick currently lists selected Grade 8.8 metric bolts across plain, zinc & galvanised finishes.

Finish selection can be influenced by exposure, corrosion requirements, assembly specification & project conditions.

Do not assume galvanised, zinc or plain fasteners are automatically interchangeable because their dimensions match.

For related fastening requirements outside conventional high tensile hex bolts, Specialty Fasteners & Fixings provides another relevant cross-sell pathway.

Match the Nut & Washer

The complete bolted assembly matters.

A compatible thread does not by itself prove that a nut is suitable for a high-strength bolted connection.

Confirm the required:

► Nut thread
► Nut property class
► Washer specification
► Surface finish
► Assembly standard
► Tightening method

For broader nut & washer selection, Nuts & Washers supports complementary fastening requirements.

Grade 8.8 vs Grade 10.9 High Tensile Bolts

Grade 8.8 & Grade 10.9 are different metric property classes.

The higher numerical class should not automatically be interpreted as the better choice for every application.

The correct question is:

Which property class has been specified for this joint?

That distinction protects both technical accuracy & search intent.

A buyer looking for a general high tensile replacement may need Grade 8.8.

Another assembly may specifically require Grade 10.9.

An engineered structural connection may require a separately specified structural bolt assembly rather than a generic high tensile bolt.

Follow the documented requirement rather than selecting by perceived strength alone.

Australian Standards & High Tensile Bolt Selection

Australian trade buyers regularly encounter standards references when selecting fasteners.

Bremick currently identifies Grade 8.8 hex-head bolts under AS1110 within its general bolt range.

Bremick also separately identifies AS1252:2016 K0 Class 8.8 structural assemblies.

Those products serve different specification contexts.

The presence of Grade 8.8 on two products does not make their complete assemblies equivalent.

For safety-critical, structural or engineered work, verify the exact standard, assembly requirements & supporting documentation before installation.

This specification-first approach is particularly important where bolt selection affects structural performance, machinery reliability or workplace safety.

Expert Tips for High Tensile Bolts

Read the head markings.
Property-class markings provide valuable identification information during replacement & maintenance.

Never choose by appearance alone.
Fasteners with similar dimensions can have different mechanical properties, threads, materials or finishes.

Confirm the thread pitch.
Nominal diameter alone is insufficient.

Match the complete assembly.
Bolt, nut, washer & joint specification should be treated as one fastening system.

Do not assume higher grade means better.
Use the property class specified for the application.

Check the finish.
Environmental exposure plus project requirements can influence whether plain, zinc, galvanised or another specified finish is appropriate.

Inspect reused fasteners carefully.
Damaged threads, deformation, significant corrosion or uncertain identification should trigger further assessment before reuse.

Follow the specified tightening procedure.
Required installation conditions can vary with fastener class, finish, lubrication, joint design & engineering requirements.

For businesses managing ongoing project supply, Trade Support Solutions can assist with broader trade purchasing requirements.

For site-based operations where availability directly affects productivity, The Jobsite Doesn't Forgive. We Do. provides further context around keeping trade operations moving.

Selecting High Tensile Bolts for Replacement Work

Replacement work deserves particular care because the original design information may not always be immediately visible.

Before ordering a replacement:

► Record the existing head markings
► Confirm diameter
► Measure length correctly
► Identify thread pitch
► Check the finish
► Identify the mating nut
► Review equipment documentation
► Confirm whether the connection is engineered or safety-critical

If the fastener cannot be positively identified, do not make the specification from appearance alone.

For workshops maintaining equipment fleets, Industrial Shed's Tool & Equipment Care provides an additional service pathway.

Maintenance teams can also read A Day With An Automotive Mechanic Peninsula for broader workshop context around professional mechanical work.

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Why Buy From Industrial Shed?

Industrial Shed supports Australian trades, fabricators, workshops, maintenance teams & construction businesses sourcing fastening products around real job requirements.

For high tensile bolting, correct specification comes first.

That means identifying the property class, diameter, length, thread, finish & mating components before the fastener reaches the job.

The result is a more controlled purchasing process with fewer incorrect substitutions & stronger alignment between the ordered fastener & the actual application.

Specify the Grade. Match the Thread. Secure the Job.

✔ Choose Grade 8.8 or Grade 10.9 according to the specified requirement
✔ Confirm diameter, length & thread pitch
✔ Match the required finish & exposure conditions
✔ Use compatible nuts & washers
✔ Verify the applicable standard or engineering specification
✔ Follow the specified installation & tightening procedure
✔ Choose Bremick high tensile bolts for specification-led trade, fabrication, machinery & industrial fastening

Frequently Asked Questions

Bremick's current bolt range includes Grade 8.8 & Grade 10.9 products across relevant bolt families.

Bremick currently identifies Grade 8.8 hex-head bolts under AS1110 within its bolt range.

They are different metric property classes with different defined mechanical characteristics. Use the class specified for the joint.

Do not substitute property classes solely because the dimensions match. Verify the permitted grade against the engineering specification or equipment requirements.

Selected Bremick Grade 8.8 metric bolt configurations are currently listed in galvanised finishes. Availability depends on the specific size & product configuration.

Check the property-class marking, diameter, length, thread pitch, finish, applicable standard & assembly specification.

Not automatically. Grade 8.8 identifies a property class. Structural assemblies can have additional standard, conformity, assembly & installation requirements.

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