RS PRO Bright Zinc-Plated Steel Roofing Bolt M6 x 20mm, Grade 4.8, Mushroom Head, Phillips Drive, Box of 100, 277-626

RS PRO 277-626 Bright Zinc-Plated Steel Roofing Bolt, M6 x 20mm, Grade 4.8, is engineered for secure fastening in roofing and sheet metal applications. The product is supplied in a box with 100 bolts and accompanying nuts, allowing for bulk installation in both commercial and residential projects. With a mushroom head, these bolts distribute the holding force over a wider surface, reducing the risk of damaging thinner materials or panels under stress.

The bolt features a Phillips drive, making installation straightforward with standard screwdrivers. Its bright zinc-plated finish provides resistance against corrosion and rust, ensuring optimal performance even in humid, outdoor, or industrial environments. Manufactured from mild steel grade 4.8, it combines toughness with ease of handling, meeting common requirements for roofing and construction fixings.

Measured at 20mm length and M6 thread size, these bolts fit precisely in metal and timber structures that demand robust attachment and longevity. The design safeguards roof panels and sheeting against shifting and weather-related stresses. Typical installation scenarios include construction sites, roofing repair, metal panel mounting, and general building maintenance.

The bolt’s large, flat mushroom head is particularly suitable for fastening thin sheets as it distributes load evenly, minimizing material distortion or marking. Each box includes 100 bolts and matching nuts, reducing the need for extra fixings or specialist tools, thereby speeding up installation workflows. Phillips drive type ensures compatibility with common screwdrivers and power tools, optimizing efficiency in industrial, commercial, and home projects.

Industries and applications include industrial facilities, construction zones, HVAC installations, metal workshops, and domestic roof repairs. The corrosion resistance combined with dependable material strength makes this bolt suitable for challenging outdoor conditions. Its standardized M6 thread simplifies compatibility checks with other hardware.

Box of 100 bright zinc-plated steel roofing bolts and nuts, ideal for bulk fixing. 20mm bolt length, mushroom head design, and Phillips drive type for efficient installation. Grade 4.8 mild steel for reliable load-bearing and mechanical performance.

Corrosion-resistant finish for outdoor and wet environments. Widely used in industrial, construction, and domestic projects for roofing and sheet metal fastening. Browse more roofing bolts, Machine Screws, and industrial fasteners from RS PRO and other trusted brands on EnvMart.