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Very Thin Flat Head Drilling Screw
TV003-130416-1
Process: Using multi blow headers to make the head, to thread, and then slot before passivation All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Head diameter, Head height, 6-lobe Drive Depth, 6-lobe Drive plug gauge, Thread length, Major diameter, Minor diameter, Thread angle, Pitch, Length of the drilling tail, Diameter of the drilling tail
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Flat Head Square Drive Drilling Screw
TV003-130428
Process: Using multi blow headers to make the head, to thread, and then slot before passivation All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Head diameter, Head height, Limited head height, Square Drive depth, Square Drive plug gauge, Diameter of the drilling tail, Length of the drilling tail, Major diameter, Minor diameter, Thread angle, Pitch
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Chamfered Hex Washer Head Drilling Screw
TV003-151127-1
Process: Using multi blow headers to make the head, to thread, and then slot before passivation All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Across the flat and corner of the hex, Thread length, Major diameter, Minor diameter, Thread angle, Pitch, Drilling diameter, Drilling tapping length
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Chamfered Hex Washer Head w/ Tapping Type AB
TV003-151130-1
Process: Using multi blow headers to make the head, to thread, and then slot before passivation All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Across the flat and corner of the hex, Head height, Thread length, Major diameter, Minor diameter, Thread angle, Pitch, Drilling Tapping diameter, Drilling Tapping length
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Directly Cut Chamfered Hex Washer Head
SG005-140902-1
Process: Screw head shaping, thread rolling and washer molding before heat treating All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector, Recess Penetration Gage, M5 Ring gage Screw Measurement Points: Across the flat and corner, Washer diameter, Washer height, Thread cutting width, Thread cutting depth, Length, Head height, Major diameter, Minor diameter, Thread angle, Pitch, Drilling tapping length, Drilling tapping diameter EPDM Measurement Points: Outside diameter, Height, Rec depth
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Flat Machine Thread Drilling Screw
CM008-150812-1
Process: Using multi blow header to make the head and then threading before passivation. Plating and acid washing after heat treating. The last step being beeswaxing All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Head diameter, Head height, Square depth, Square plug gauge, Total length, Major diameter, Minor diameter, Thread angle, Pitch, Drilling tail diameter, Drilling tail length, Plating inspection Plating Reports Offered
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Pan Head Phillips Drilling Tail
CP007-100809-1
Process: Using multi blow header to make the head and then rolling before acid washing and heat treating. At last spray painting on the head part All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Screw Measurement Points: Head diameter, Head height, Thread length, Major diameter, Minor diameter, Thread angle, Pitch, Paint surface inspection
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Pan Head Square Drilling Screw
CS018-140413-1
Process: Using multi blow header to make the head and then rolling before acid washing and heat treating. At last spray painting on the head part All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Head diameter, Head height, Square depth, Square plug gauge, Total length, Major diameter, Minor diameter, Pitch, Thread angle, Paint surface inspection
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Pan Head Square Rec Drilling Screw
CS018-150215-1
Process: Using multi blow header to make the head and then rolling before acid washing and heat treating. At last spray painting on the head part All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Head diameter, Head height, Square rec depth, Square plug gauge, Total length, Major diameter, Minor diameter, Thread angle, Pitch ,Paint surface inspection
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Pan Head Phillips Drilling Screw
CS018-150215-2
Process: Using multi blow header to make the head and then rolling before acid washing and heat treating. At last spray painting on the head part All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Head diameter, Head height, Phillips rec depth, Thread length, Major diameter, Minor diameter, Thread angle, Pitch , Paint surface inspection
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Chamfered Hex Washer Head
HV003-150417-1
Process: Using multi blow header for head formation before threading, and then acid washing All the items are inspected during the process and before shipping, complying with ISO Working Instruction Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector Measurement Points: Head diameter, Head height, Across the flat and corner of the hex, Thread length, Drilling Tapping diameter, Drilling Tapping length, Total length, Major diameter, Minor diameter, Thread angle, Pitch
Drilling Screw | Advanced Industrial Fasteners Manufacturer | Over 30 Years of Excellence
Sen Chang Industrial Co., Ltd., established in 1968, stands at the forefront of stainless steel industrial Drilling Screw and fastener manufacturing. With a legacy of excellence spanning over four decades, our product lineup includes stainless steel screws, wires, pins, rivets, and high-tensile screws designed to meet the demanding needs of industrial manufacturing. Our commitment to quality is underscored by our adherence to ISO9001 standards, ensuring each product we offer is not just compliant but exceeds industry expectations. From sourcing premium raw materials from Japan and Taiwan to employing cutting-edge manufacturing techniques, we ensure that our fasteners provide superior strength, durability, and reliability. Our specialized offerings, including customized fastener solutions, cater to a wide range of industries globally, making us the preferred partner for companies seeking unparalleled quality and precision in their fastening solutions.