SS 304 Square Head Plugs 1/2"" BSP

Stainless Steel Square Head Plugs 1. Product Description (Pointwise) Stainless steel square head plugs are threaded fittings used to seal unused ports, openings, or threaded holes in pipelines, valves, pumps, and pressure equipment. Square head design allows easy tightening and removal using spanners or adjustable wrenches, even in confined spaces. Manufactured with precision threads for leak-proof sealing when used with PTFE tape, sealant, or gasket. Suitable for high-pressure, high-temperature, and corrosive environments. 2. Stainless Steel Material Grades & Equivalents SS 304 / 304L AISI: 304 / 304L UNS: S30400 / S30403 ASTM: ASTM A276, ASTM A479 DIN / EN: DIN 1.4301 / 1.4307 ISO: ISO 3506 – A2 SS 316 / 316L AISI: 316 / 316L UNS: S31600 / S31603 ASTM: ASTM A276, ASTM A479 DIN / EN: DIN 1.4401 / 1.4404 ISO: ISO 3506 – A4 SS 317L (Optional) AISI: 317L UNS: S31703 ASTM: ASTM A276 DIN / EN: DIN 1.4438 (Other grades like Duplex, Super Duplex, or high-nickel alloys available on request.) 3. Washer Dimension Standards (When Used with Plugs) (Applicable where sealing washers or backup washers are specified) IS Standards IS 2016 – Plain washers (normal & heavy series) IS 6649 – Spring lock washers DIN Standards DIN 125 – Flat washers DIN 9021 – Large OD / heavy washers ASME Standards ASME B18.21.1 – Flat washers & helical spring washers 4. Applications Chemical & Process Plants – Valves, reactors, pipelines Oil & Gas Industry – Refineries, offshore platforms, instrumentation ports Hydraulic & Pneumatic Systems – Manifolds, pump housings Water Treatment & Desalination Plants – Pumps, filters, piping systems Power Plants – Steam lines, auxiliary piping Food & Pharmaceutical Industry – Hygienic and corrosion-resistant sealing 5. Key Advantages of Stainless Steel Square Head Plugs Excellent corrosion and oxidation resistance Strong and durable for pressure and temperature variations Easy installation and removal with standard tools 6. Why Choose Aanuraj Fasteners Pvt Ltd – 3 Important Advantages Precision Manufacturing Square head plugs manufactured with accurate threads and controlled tolerances for leak-free performance. Wide Material Range Capability to supply SS 304, 316, 317L, Duplex, and exotic alloy plugs as per project requirements. Reliable Quality & Customization Heat number traceability, dimensional inspection, and custom sizes as per IS, DIN, ASME, or customer drawings.