Hastelloy Bolts China has fastener specialists waiting to help you locate items that are hard to find. We know how time-consuming finding the right Dome Head screws can be, but we are equipped and experienced to take the hassle out of that work. Dome Head Screws have an oversized "truss" head style with an undercut bottom and a low height rounded dome top. Choose between Phillips and Slotted drives as well as machine and sheet metal threading.
We offer a wide range of Dome Head Screws available in different materials. Each screw has different specification and use. We use best quality MS (mild steel), SS (stainless steel), Brass, Copper, etc.
Forming | Hot & Cold Forged |
Metric Size | M0.6 to M100 |
Imperial Size | #0 to 4" |
Threads | UNC, UNF, ISO, BSW & ACME. |
Standards | DIN, ASME, ISO & IS |
Variants | Fully Threaded Dome Head Screws, Partial Threaded Dome Head Screws, Metric Dome Head Screws, Imperial Dome Head Screws |
Dimension Standards | DIN 601, DIN 931, DIN 960, ISO 4014, ISO 4016, ISO 8765, ASME B18.2.1, ASME B18.2.3.5M, IS 1363-1, IS 1364-1, IS 6639, IS 12427 |
Alloy Categories | Alloy Steel, Carbon Steel, Stainless Steel, Hastelloy, Inconel, Incoloy, Nickel Bolts, Duplex Steel, Super Duplex, Monel, Brass, Aluminum Bronze, Phosphor Bronze, Silicon Bronze |
Material Specifications | ASTM A193, ASTM A307, ASTM A449, ASTM A453, ASTM A490, ASTM A540, ASTM A1014, ASTM A1082, ASTM F468, ASTM F593, ASTM F2281, ASTM F3125 |
Coatings | PTFE (Teflon), Hot Dip Galvanizing, Aluminum Zinc Flake, Zinc Phosphating, Manganese Phosphating, Metallic Zinc, Nickel Bolts Plating, Chrome Plating, Cadmium Plating, Silver Plating, Tin Plating |
Nominal Size | A | H | J | T | M | G | N |
Phillips |
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Head Diameter |
Height of Hand | Width of Slot | Depth of Slot | Dimensions of Recess | ||||||||||
Diameter | Depth | Width | ||||||||||||
Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | - | ||
2 | .182 | .146 | .069 | .059 | .031 | .023 | .048 | .037 | .100 | .087 | .053 | .017 |
1 |
|
3 | .187 | .169 | .078 | .067 | .035 | .027 | .053 | .040 | .109 | .096 | .062 | .018 | 1 | |
4 | .211 | .193 | .086 | .075 | .039 | .031 | .058 | .044 | .118 | .105 | .072 | .019 | 1 | |
5 | .236 | .217 | .095 | .083 | .043 | .035 | .063 | .047 | .154 | .141 | .074 | .027 | 2 | |
6 | .260 | .240 | .103 | .091 | .048 | .039 | .068 | .051 | .162 | .149 | .084 | .027 | 2 | |
8 | .309 | .287 | .120 | .107 | .054 | .045 | .077 | .058 | .178 | .165 | .101 | .030 | 2 | |
10 | .359 | .334 | .137 | .123 | .060 | .050 | .087 | .065 | .195 | .182 | .119 | .031 | 2 | |
12 | .408 | .382 | .153 | .139 | .067 | .056 | .096 | .073 | .249 | .236 | .125 | .032 | 3 | |
1/4 | .472 | .443 | .175 | .160 | .075 | .064 | .109 | .082 | .268 | .255 | .147 | .034 | 3 | |
5/16 | .590 | .557 | .216 | .198 | .084 | .072 | .132 | .099 | .308 | .295 | .187 | .040 | 3 | |
3/8 | .708 | .670 | .256 | .237 | .094 | .081 | .155 | .117 | .387 | .374 | .228 | .064 | 4 | |
1/2 | .813 | .766 | .355 | .332 | .106 | .091 | .211 | .159 | .416 | .403 | .205 | .068 | 4 |
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