Construction and civils teams commonly order throughbolts for concrete and masonry anchoring where product data supports the application; ankerbolts for concrete, brick and block fixing where through-access is not practical; hex bolts for bolted steelwork, frames and mechanical connections used with compatible nuts and washers; socket bolts where an internal hex drive or lower-profile head suits the assembly; cup square bolts for timber connections, fencing, gates and decking; and hook and eye bolts for suspension, tensioning, fencing and cabling applications.

The right bolt type depends on the base material, connection type, diameter, length, thread type, grade or class where specified, finish and compatible assembly components. Buyers should check product data and manufacturer guidance before ordering to confirm suitability for the application.

Key checks before ordering depend on the bolt type and application. In most cases, buyers should confirm: metric diameter and thread size, length, thread type (fully threaded or partially threaded where relevant), grade or class where stated, head type, finish or coating, compatible nuts and washers where required, base material, pack quantity and any project specification requirements.

For concrete and masonry applications, buyers should also check substrate type and hole size, and whether any product approval is required by the project specification. Where bolts form part of a specified or load-related connection, product data and manufacturer guidance should be reviewed before ordering to confirm the bolt is suitable for the substrate, fixing duty, site conditions and exposure environment.

Throughbolts are commonly considered for concrete and masonry anchoring through the fixture where the product data supports the base material, fixture thickness, embedment and fixing duty. Buyers should check diameter, length, finish and technical data before ordering.

Ankerbolts are used for concrete, brick or block fixing where product data supports the application. Buyers should check the base material, hole size, head style, finish and product data before ordering.

Hex bolts are general-purpose fasteners used for bolted connections in steelwork, timber-to-steel, brackets and frames, paired with compatible nuts and washers. Grade or class, thread size and finish should be checked against product data before ordering.

Socket bolts have an internal hex drive and are used where a flush or lower-profile head is needed, or where access for a spanner is restricted. Drive size and head clearance should be confirmed before ordering.

Grade or class where stated affects the strength and performance of the bolt in a given connection. Buyers should check whether a specific property class, grade or standard is required by the project specification or product data before ordering, rather than assuming a default grade applies.

Thread size and type should be confirmed to match compatible nuts, washers and any pre-drilled or tapped holes in the assembly. Mixing incompatible thread sizes or grades within a connection without checking compatibility from product data should be avoided.

Finish or coating affects corrosion resistance. Zinc-plated finishes are typically suited to dry or internal use. For external, exposed or corrosive environments, buyers should check whether a galvanised, stainless or coated option is required, based on product data and site conditions.

Compatible nuts and washers are required to form a complete, functional bolted connection. Thread size and pitch must match between the bolt and nut for the assembly to work. Washers distribute load across the bearing face and help protect the fixing surface.

Where a specific property class or grade is called for in the project specification, nuts and washers should be compatible with the bolt grade and the connection design. Mixing mismatched components without confirming compatibility from product data can affect the performance of the connection. Buyers should confirm nut and washer compatibility before ordering, particularly for specified or load-related connections.

Finish affects corrosion resistance and suitability for different environments. Zinc-plated bolts are generally suited to dry, internal or temporarily protected conditions. For external, exposed, coastal or high-humidity environments, buyers should check whether a galvanised, stainless or coated option is more appropriate for the application.

Stainless steel bolts (A2 or A4 grade where stated) offer greater corrosion resistance and are commonly specified for external, marine or chemically aggressive environments. The right finish depends on the exposure environment, substrate, site conditions and any project or specification requirements. Buyers should confirm finish suitability from the product data before ordering for external or corrosive-environment applications.

Yes. CMT Group supplies bolts for project accounts, depot replenishment, framework contracts and ongoing site supply. For bulk orders, repeat supply or account-based procurement, buyers can use the EDGE B2B Portal or speak to the team to discuss stock availability and supply arrangements.

The wider supply service is supported by supplier-level accreditations including CHAS Elite, BSI ISO 9001:2015 Quality Management and ConstructionOnline Gold. These accreditations support procurement confidence around safety management, quality processes and supplier assurance. Product suitability still depends on the individual bolt type, substrate, fixing duty, site conditions, manufacturer guidance and any project-specific requirements.

Stocked bolt lines can be supplied with next-day and VIP same-day delivery options where available, with nationwide coverage for trade and project accounts. Availability can vary by bolt type, size, finish and quantity, so buyers ordering for project rollouts, depot replenishment or urgent site requirements should check stock and delivery options before placing large or time-critical orders.