Socket Head Bolts
Socket head bolts, also known as socket cap screws or Allen bolts, are a type of threaded fastener with a cylindrical head and an internal hexagonal drive (socket) for tightening using an Allen wrench or hex key. These bolts are widely used in various applications due to their sleek profile and high strength.
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Stainless Steel Allen Head BoltsDetailDimension Table
Stainless steel Allen head bolts are chosen for their corrosion resistance properties, making them suitable for outdoor, marine, and other environments where exposure to moisture and corrosive elements is likely. Stainless steel Allen head bolts often have a polished or passivated surface finish to enhance corrosion resistance and improve aesthetics.
AYAINOX has a wide range of Allen head bolt sizes and lengths to accommodate different applications.<
Screw Thread M1.4 M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 d P Pitch Coarse thread 0.3 0.35 0.4 0.45 0.5 0.7 0.8 1 1.25 1.5 Fine thread pitch-1 - - - - - - - - 1 1.25 Fine thread pitch-2 - - - - - - - - - 1 dk plain head max 2.6 3 3.8 4.5 5.5 7 8.5 10 13 16 knurled heads max 2.74 3.14 3.98 4.68 5.68 7.22 8.72 10.22 13.27 16.27 min 2.46 2.86 3.62 4.32 5.32 6.78 8.28 9.78 12.73 15.73 da max 1.8 2 2.6 3.1 3.6 4.7 5.7 6.8 9.2 11.2 ds max 1.4 1.6 2 2.5 3 4 5 6 8 10 min 1.26 1.46 1.86 2.36 2.86 3.82 4.82 5.82 7.78 9.78 e min 1.5 1.73 1.73 2.3 2.87 3.44 4.58 5.72 6.86 9.15 k max 1.4 1.6 2 2.5 3 4 5 6 8 10 min 1.26 1.46 1.86 2.36 2.86 3.82 4.82 5.7 7.64 9.64 s Nominal Size 1.3 1.5 1.5 2 2.5 3 4 5 6 8 min 1.32 1.52 1.52 2.02 2.52 3.02 4.02 5.02 6.02 8.025 max 1.36 1.56 1.56 2.06 2.58 3.08 4.095 5.14 6.14 8.175 t min 0.6 0.7 1 1.1 1.3 2 2.5 3 4 5 w min 0.5 0.55 0.55 0.85 1.15 1.4 1.9 2.3 3 4 -
Stainless Steel Socket Head Cap BoltsDetailDimension Table
Commodity: Stainless Steel Allen Head Bolts
Material: Made from 316 stainless steel, these screws have good chemical resistance and may be mildly magnetic. They are also known as A2 stainless steel.
Head Type: Socket Head.
Length: is measured from under the head.
Metric screws are also known as A2 stainless steel screws.
Thread Type: Coarse Thread, Fine Thread. Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.
Standard: Screws that meet ASME B1.1, ASME B18.3, ISO 21269, and ISO 4762 (formerly DIN 912) comply with standards for dimensions. Screws that meet ASTM B456 and ASTM F837 comply with standards for materials.Size 0# 1# 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 d Screw Diameter 0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.216 0.25 0.3125 PP UNC - 64 56 48 40 40 32 32 24 24 20 18 UNF 80 72 64 56 48 44 40 36 32 28 28 24 UNEF - - - - - - - - - 32 32 32 ds max=nominal size 0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.216 0.25 0.3125 min 0.0568 0.0695 0.0822 0.0949 0.1075 0.1202 0.1329 0.1585 0.184 0.2095 0.2435 0.3053 dk max 0.096 0.118 0.14 0.161 0.183 0.205 0.226 0.27 0.312 0.324 0.375 0.469 min 0.091 0.112 0.134 0.154 0.176 0.198 0.216 0.257 0.298 0.314 0.354 0.446 k max 0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.216 0.25 0.312 min 0.057 0.07 0.083 0.095 0.108 0.121 0.134 0.159 0.185 0.21 0.244 0.306 s Nominal Size 0.05 0.062 0.078 0.078 0.094 0.094 0.109 0.141 0.156 0.156 0.188 0.25 t min 0.025 0.031 0.038 0.044 0.051 0.057 0.064 0.077 0.09 0.103 0.12 0.151 b min 0.5 0.62 0.62 0.62 0.75 0.75 0.75 0.88 0.88 0.88 1 1.12 c chamfer or radius 0.004 0.005 0.008 0.008 0.009 0.012 0.013 0.014 0.018 0.022 0.025 0.033 r chamfer or radius 0.007 0.007 0.007 0.007 0.008 0.008 0.008 0.008 0.008 0.01 0.01 0.01 w min 0.02 0.025 0.029 0.034 0.038 0.043 0.047 0.056 0.065 0.082 0.095 0.119
