A stainless steel grating fastener is specified by grade for a reason. Type 304 handles most indoor and freshwater environments without issue, representing the cost‑effective choice for grating in warehouses, assembly platforms, and inland water treatment galleries. Where the atmosphere pushes the corrosion risk higher—offshore topsides, coastal loading docks, chlorine storage buildings—the specification shifts to Type 316 stainless. The 2–3% molybdenum addition in 316 directly improves resistance to pitting and crevice corrosion in chloride service. For the engineer writing the fastener schedule, the decision between 304 and 316 turns on a simple question: will the clip face salt spray or acidic fumes during normal operation?
Mechanically, the saddle‑type corrosion‑resistant grating clip spans the intersection of two bearing bars and the supporting beam below. Two bolts draw the saddle down onto the grating, transferring the load through the clip body rather than through the grating itself. The result is a fully demountable connection that does not rely on friction alone. Installation torque typically ranges from 15–25 N·m for both grades, and the clip can be set from above—important when the area below the grating is a live process zone. Saddle thickness commonly falls between 2.5–3.0 mm, providing a rigid bearing surface. Both 304 and 316 clips ship passivated as standard, with electropolishing available for the most demanding service conditions.
These fasteners are suitable for molded or pultruded grating panels with depths from 25–50 mm. Each clip is supplied as a complete set with saddle, two bolts, flat washers, and lock washers, labelled by heat number for full material traceability. For installations requiring a fully non‑metallic connection, the same saddle design is available in FRP.
Proven in Field
"We replaced over 2,000 grating clips on the offshore platform's helideck with 316 stainless saddles after the original galvanized clips failed within two years. Three winters of North Sea exposure later, every clip is intact, and the grating panels remain fully secure with zero edge uplift."
— Offshore Platform Grating Upgrade
Review Fastener Specifications & Material Grades
WayTong supplies stainless steel grating clips in Type 304 and 316, passivated as standard, for molded and pultruded FRP panels. Contact our technical desk for heat‑number traceability, electropolishing options, and project‑specific material selection guidance.
Request Product InformationThese fasteners integrate into the WayTong Accessories & Hardware family alongside carbon‑steel clips and FRP bolting kits. For complete mechanical performance data, see the ASTM Standards Summary.