Screws were described as "2BA", "4BA" etc. 2BA threads are commonly found in the old imperial BESA conduit boxes. BA sizes were also used extensively in aircraft, especially those manufactured in the United Kingdom.
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10Pcs Engine Compartment Cover Plate Screw Clips For Porsche For Cayenne 03-10 Engine Compartment Cover Screw Clip
Aliexpress UK
BA Stainless Steel Countersunk Screws Manufactured By EKP Supplies. EKP supplies.
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20 Pcs M3 M3.5 M4 M5 Nickel Plated Square Washer Two Combination Screw Phillips Terminal Block Screw Leakage Switch Accessories
Aliexpress UK
12 BA Steel Countersunk Machine Screws Manufactured by EKP Supplies in The UK. EKP supplies.
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For Cartier Santos Watch Face Front Cover Back Cover Screw Men Women Watches Flat Small Cap Screws Watch Accessories with Tools
Aliexpress UK
2BA Brass Cheese Head Machine Screw - Slotted. UK Manufacturer of screws and machine turned parts. These are high quality bar turned screws produced by us in our UK factory.
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M2 M2.6 M3 M4 M5 M6 304 Stainless Steel Ultrathin Hex Hexagon Ultra Thin Low Flat Wafer Head Self Tapping Screw Wood Screws
Aliexpress UK
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Universal 360 Swivel 1/4" Screw Converter Kit Mini Tripod Adapter with M5 Thumb Screw for Gopro 13 Insta360 X4/3 Action Camera
Aliexpress UK
Thread size: 6BA - 0BA. With a slotted countersunk head. Solid brass BA machine screws. We also have listed various other sizes and head shapes.
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1/4" 3/8" Threaded Screw Adapter Converter Camera Screw Mount Set Flash Shoe Mount for Camera Tripod Monopod Ballhead Stand
Aliexpress UK
Quality 5 BA screws manufactured by EKP Supplies. EKP supplies.
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600/1200 sets Miniature self-tapping screws, Miniature crosshead metal screws classification kit
Aliexpress UK
Loads more being listed so take a look if you need different sizes.
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20/30/50/100pcs Hex Nut transparent screw M3 M4 Flat Phillips Cross Head Bolt Acrylic Clear Plastic Nylon Screws Nuts
Aliexpress UK