Expansion Sleeve Screw Baks PSROM8X75 8×75 mm

Baks PSROM8X75 expansion sleeve screw 8×75 mm is designed for anchoring into masonry and concrete. The sleeve expands as the screw is tightened, forming a secure mechanical anchor that holds brackets, railings and other fixings reliably. This fastener is sized for medium-duty load-bearing applications and is suitable where a durable, removable connection to solid substrates is required.

Advantages

The expansion sleeve design provides consistent radial expansion in drilled holes, delivering stable holding power in concrete and brick. Installation is straightforward and requires only a correctly sized drill bit and standard hand or power tools. The metal sleeve and screw construction ensures durability and resistance to deformation under load, while the removable screw allows fixtures to be detached or adjusted without compromising the sleeve in many installations.

Suitable for

• Fixing metal brackets and supports to concrete or brick walls
• Mounting railings, balustrades and handrails
• Securing machinery baseplates and medium-weight equipment
• Attaching shelving, signage and facade elements to solid substrates

Key specifications

• Nominal diameter: 8 mm
• Embedded length / overall length: 75 mm
• Suitable substrates: concrete, solid brick, stone
• Anchor type: mechanical expansion sleeve
• Material: metal sleeve with matching screw (steel)
• Installation hole: requires drilled hole matching sleeve diameter
• Load class: medium-duty anchoring (depending on substrate and installation)

How to use

Drill a hole in the substrate with a drill bit sized to the sleeve diameter, ensuring the hole depth accommodates the full embedded length. Clean the hole of dust and debris using a brush or blower. Insert the expansion sleeve into the hole until the flange sits flush with the surface or to the required depth. Position the fixture and insert the screw through the fixture into the sleeve, then tighten with the appropriate driver until the sleeve expands and the fixture is held firmly. Do not overtighten beyond recommended torque for the substrate to avoid damage.

Usage recommendations

Verify substrate quality before installation and choose drill bit and screw driver compatible with the 8×75 mm sleeve. For critical or load-bearing installations, follow relevant building standards and calculate required spacing and edge distances. If corrosion resistance is required, select corrosion-protected fasteners or appropriate coatings; consult technical guidelines for exposure conditions.