--- title: "Fiberglass Grating Clips & Hold-Down Clips (Types M, J, G)" description: "Fiberglass grating clips by type (M, J, F, G and pultruded hold-downs): Type 316 stainless, 4 ft maximum spacing, clips per panel and Section 232 duty notes." url: https://www.strongrate.us/accessories/fiberglass-grating-clips/ markdown: https://www.strongrate.us/accessories/fiberglass-grating-clips.md published: 2026-10-16 updated: 2026-10-17 --- [Home](https://www.strongrate.us/) › [Fiberglass grating](https://www.strongrate.us/fiberglass-grating/) › [Grating clips](https://www.strongrate.us/accessories/fiberglass-grating-clips/) # Fiberglass Grating Clips: Types, Spacing and Count per Panel _Updated Oct 17, 2026_ Fiberglass grating clips hold panels down to the supporting steel. US guide specifications call for Type 316 stainless steel clips no more than 4 ft (1.22 m) apart, at least four per piece of grating. Strongrate's catalog lists six STRONGFIX clip types (L, M, C, W, J and G), mainly stainless steel, and recommends the M saddle clip for most gratings. ## Which STRONGFIX clips does Strongrate’s catalog list? **STRONGFIX grating clips in Strongrate’s 2023 catalog** | Catalog type | What it does, per the catalog | Used on | | --- | --- | --- | | L clip [note 1] | Lighter-duty alternative to the M clip; holds one load bar down to the support | FRP grating | | M clip [note 1] | Saddle clip that clamps two load bars to the support; the catalog’s recommended clip for stair tread panels | Most gratings: open mesh, mini mesh and pultruded | | C clip [note 1] | Joins two molded panels where their joint falls between supports, to limit differential deflection | Molded grating | | W clip [note 1] | Round fastener with a recessed center that sits flush, under 1/4" (6.4 mm) high | Plates and covered grating | | J clamp [note 1] | Bottom clamp used with a top clip, to fasten grating to a frame that cannot be drilled | Versions for each molded mesh and pultruded open area | | G clamp [note 1] | Fastened from above with hand tools; no drilling, tapping, cutting or welding | FRP grating | _Uses as described in Strongrate’s 2023 catalog. Its letter designations do not always match other makers’ (its J clamp is a bottom clamp), so order by drawing, not by letter._ Notes: 1. The catalog’s Chinese text also lists galvanized steel; the clip material is stated in your quote. Other US makers use Type M for a saddle clip over two bars, Type J for a clip on one bar, Type F for an end or joining clip and Type G for a no-drill friction clip; pultruded grating uses hold-downs shaped for its bearing bars. Match the clip drawing to your grating: [molded fiberglass grating](https://www.strongrate.us/molded-fiberglass-grating/) or [pultruded fiberglass grating](https://www.strongrate.us/pultruded-fiberglass-grating/). ## How many clips does each panel need? US guide specifications call for clips no more than 4 ft (1.22 m) apart, with at least four per piece of grating. Some suppliers ask for more: at least eight per 4 ft × 12 ft (1220 × 3660 mm) panel, or three per support per panel and two for panels 2 ft (0.61 m) wide or narrower, with at least 1-1/2" (38 mm) of bearing on each support. **Clip count and spacing rules for fiberglass grating clips: guide specifications and supplier rules** | Source | Rule | Distance, in (mm) | | --- | --- | --- | | US guide specifications | Type 316 stainless clips; at least 4 per piece of grating; maximum spacing | 48" (1219 mm) | | US supplier rule | At least 8 per 4' × 12' panel | — | | US maker rule | 3 per support per panel; 2 for panels 2 ft wide or narrower | — | | US maker rule (bearing) | Minimum grating bearing on each support | 1-1/2" (38 mm) | _Your project specification governs. Count clips from the layout drawing: every piece of grating, including cut pieces, needs its own clips. Step-by-step layout: [how to install fiberglass grating](https://www.strongrate.us/resources/how-to-install-fiberglass-grating/)._ ## Why Type 316 stainless, and what about drilling? US guide specifications name Type 316 stainless steel for hold-down clips; Strongrate’s catalog says its clips are mainly stainless steel, so state the grade your specification requires in the quote request. On pultruded grating, use hold-downs made for the bar shape: Fibergrate cautions that drilling pultruded grating can compromise its corrosion barrier. ## How are clips quoted and shipped? Add clips to your grating request so they are counted from the same layout: send the grating type and depth, the support shape and flange thickness, the panel layout and the clip type your specification names. Clip-only orders follow the grating rule: orders under about 500 sq ft of grating, or needed in under 3 weeks, are referred to US stocking importers. Prices are quoted per project: see [fiberglass grating price per square foot](https://www.strongrate.us/pricing/fiberglass-grating-price/) or [request a quote](https://www.strongrate.us/request-quote/). As of Oct 2026, Section 232 steel derivative products carry 50% duty on full value, and the derivative list includes hardware and fasteners, so stainless steel clips shipped with grating may be subject to it. Ask for clips to be invoiced as a separate line and confirm their classification with your licensed customs broker; see [landed cost, duty and freight](https://www.strongrate.us/buy-direct/landed-cost-duty-and-freight/). ## Frequently asked questions ### Will Strongrate clips fit my support beams? Send the support shape and flange thickness with your request so the clip type and bolt length can be matched to your steel. ### Which grating clip needs no drilling? The Type G friction clip is the common no-drill clip for molded grating, and Strongrate’s catalog describes its G clamp as fastened from above without drilling. Confirm with the supplier that it holds your grating under the loads and vibration it will see. ### Are Strongrate clips made in the same factory as the grating? Strongrate’s catalog lists its STRONGFIX clips but does not say where they are made. If your project specification sets origin rules, ask for the clips’ country of origin with your quote. ## Related pages - [Fiberglass grating](https://www.strongrate.us/fiberglass-grating/): What fiberglass (FRP) grating is, how molded and pultruded types differ, standard panel sizes and price ranges, and the grating options Strongrate makes. - [How to install fiberglass grating](https://www.strongrate.us/resources/how-to-install-fiberglass-grating/): How to install fiberglass grating: support bearing, span direction, clip layout and counts per panel, cut-outs, guardrails, inspection and expansion gaps. - [Molded fiberglass grating](https://www.strongrate.us/molded-fiberglass-grating/): Molded fiberglass (FRP) grating from Strongrate’s Nantong factory by depth and mesh: square, rectangular and mini meshes, the four DNV-listed models with their ASTM E84 results, panel sizes, resins, surfaces and how to get factory pricing. - [Pultruded fiberglass grating](https://www.strongrate.us/pultruded-fiberglass-grating/): Strongrate pultruded fiberglass (FRP) grating: the 36 I-bar and T-bar types in the factory catalog with depth, open area and weight, the two DNV-listed models and their ASTM E84 results, resins, surfaces and how to order. - [Stair treads](https://www.strongrate.us/fiberglass-stair-treads/): Molded and pultruded fiberglass (FRP) stair treads with gritted nosing: the treads in Strongrate’s catalog, their sizes, OSHA 1910.25 stair rules, guide-specification design loads and how to order. **Request a quote:** https://www.strongrate.us/request-quote/ · Order a sample: https://www.strongrate.us/samples/ — Add clips to your quote: send grating type and depth, support flange thickness, panel layout and delivery ZIP code. Quotes within 1 business day (US Central time). ## Sources - [Fibergrate molded grating guide specification (Section 06610); Grating Pacific; Direct Metals: Type 316 clips, 4 ft spacing, 4 per piece](https://www.fibergrate.com/media/180193/fibergrate-frp-molded-grating-specs.pdf) (accessed Oct 15, 2026) - [Grating Pacific molded fiberglass grating page; Fibergrate; McNichols; Strongwell: clip types](https://gratingpacific.com/product/molded-fiberglass-grating/) (accessed Oct 15, 2026) - [Direct Metals attachments and clips page; Bedford grating catalog: extra clip rules](https://www.directmetals.com/products/fiberglass-grating/fiberglass-attachments-clips/) (accessed Oct 15, 2026) - [Bedford PROGrid and PROGrate Grating Catalog 2025 (PDF): minimum bearing](https://bedfordreinforced.com/wp-content/uploads/2026/03/2118-2025-Bedford-Grating-Catalog-Whole_LR.pdf) (accessed Oct 15, 2026) - [Fibergrate FAQ: drilling pultruded grating](https://www.fibergrate.com/resource-center/faq/) (accessed Oct 15, 2026) - [Greenberg Traurig, Updates for importers on IEEPA refunds and Section 232 metals (Apr 2026)](https://www.gtlaw.com/en/insights/2026/4/updates-for-importers-on-ieepa-refunds-and-section-232-metals) (accessed Oct 15, 2026) - Strongrate product catalog “Your Best FRP Solution” (Sep 2023), supplied by the site owner: STRONGFIX clips (accessed Oct 17, 2026) --- Fiberglass (FRP) grating made by NANTONG STRONGRATE CO.,LTD in Nantong, China. Products ship from China. Made in Nantong, China · Ships from China · HTS 3925.90.