{"id":3833,"date":"2025-06-18T19:13:33","date_gmt":"2025-06-19T02:13:33","guid":{"rendered":"https:\/\/guxiangjs.com\/?post_type=product&p=3833"},"modified":"2025-06-18T19:13:33","modified_gmt":"2025-06-19T02:13:33","slug":"phillips-flat-head-sheet-metal-screw-self-drilling-screw-for-metal-countersunk-head-phillips-drive-self-tapping","status":"publish","type":"product","link":"https:\/\/guxiangjs.com\/zh\/phillips-flat-head-sheet-metal-screw-self-drilling-screw-for-metal-countersunk-head-phillips-drive-self-tapping\/","title":{"rendered":"Phillips Flat Head Sheet Metal Screw-Self Drilling Screw for Metal Countersunk Head-Phillips Drive Self Tapping"},"content":{"rendered":"
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  1. Performance & Material Properties
    \n\u2022 High-Strength Alloy\/Carbon Steel: Machined from quenched-and-tempered C1045 carbon steel or 4140 alloy steel, delivering tensile strengths of 750\u2013850 MPa and Rockwell hardness of 40\u201348 HRC for exceptional shear and pull-out resistance.
    \n\u2022 Self-Drilling \u201cTEK\u201d Tip: Precision-ground flute hardened to Rc 45\u201350 drills through 0.5\u20133.0 mm mild steel or aluminum without pilot holes, evacuating chips efficiently and minimizing heat buildup to protect the substrate.
    \n\u2022 Self-Tapping Thread Form: Rolled threads with a 14\u00b0 helix form mating threads in sheet metals from 0.8 to 2.5 mm thick, ensuring high clamp load and vibration resistance without additional thread-locking compounds.
    \n\u2022 Flat Phillips Countersunk Head: \u00d8 8\u201310 mm low-profile head with a 100\u00b0 countersink sits flush in sheet material, offering a clean aesthetic and even load distribution across thin substrates.
    \n\u2022 Protective Zinc Plating: Available in trivalent yellow, white or clear zinc with 8\u201312 \u00b5m thickness for \u2265240 h salt-spray resistance (ASTM B117), plus optional chromate passivation for enhanced weathering.<\/li>\n
  2. Detailed Application Range
    \n\u2022 Roofing & Cladding: Securing metal roofing panels, soffits, fascia, gutters, and decorative wall cladding in residential, commercial, and industrial structures.
    \n\u2022 HVAC & Ductwork: Fastening duct seams, plenums, access panels, and grille frames where airtight, corrosion-resistant joints are critical.
    \n\u2022 Electrical & Data Installations: Mounting junction boxes, control cabinets, cable trays, and light fixtures in indoor or sheltered outdoor environments.
    \n\u2022 Light-Gauge Framing & Equipment: Assembling steel stud tracks, purlins, signage, display frames, appliance housings, automotive interior brackets, and machinery guards requiring rapid assembly and dependable performance.<\/li>\n
  3. Effortless Installation & Operation
    \n\u2022 One-Step Drill & Tap: Integrated self-drilling tip and self-tapping thread eliminate separate pilot-drilling and tapping steps, reducing installation time by up to 50 % and ensuring precise, repeatable hole entry\u2014even on angled or overhead surfaces.
    \n\u2022 Phillips #2 Drive Compatibility: Deep cruciform recess resists cam-out and engages standard #2 Phillips bits or low-torque drivers up to 6 Nm, minimizing bit wear and operator fatigue.
    \n\u2022 Controlled Seating & Anti-Overdrive Shoulder: Built-in head shoulder prevents over-insertion and substrate distortion; screws back out cleanly without enlarging the formed hole, facilitating quick rework or repositioning.
    \n\u2022 Countersunk Flush Finish: Flat head seats flush or slightly proud for a smooth, low-profile appearance and consistent clamp-load distribution.<\/li>\n
  4. Superior Quality & Long-Term Reliability
    \n\u2022 Standards & Certification: Manufactured in ISO 9001\u2013certified facilities to ANSI B18.6.4 and DIN 7504 P tolerances (\u00b10.1 mm diameter, \u00b10.2 mm length) for global interchangeability.
    \n\u2022 Rigorous Corrosion & Mechanical Testing: Zinc-plated screws endure \u2265240 h salt-spray (ASTM B117) without pitting; each lot undergoes drive-torque verification and head-pull-off testing to ensure consistent performance under vibration and dynamic loads.
    \n\u2022 Full Traceability & Environmental Compliance: Lot-coded from melt to finished part with material certificates, RoHS- and REACH-compliant, free of hexavalent chromium and other restricted substances\u2014providing both regulatory assurance and long-term service life.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

    Performance & Material Properties \u2022 High-Strength Alloy\/Carbon Steel: Machined from quenched-and-tempered C1045 carbon steel or 4140 alloy steel, delivering tensile strengths of 750\u2013850 MPa and Rockwell hardness of 40\u201348 HRC for exceptional shear and pull-out resistance. \u2022 Self-Drilling \u201cTEK\u201d Tip: Precision-ground flute hardened to Rc 45\u201350 drills through 0.5\u20133.0 mm mild steel or aluminum without […]<\/p>","protected":false},"featured_media":3834,"template":"","meta":[],"product_brand":[],"product_cat":[129],"product_tag":[],"class_list":["post-3833","product","type-product","status-publish","has-post-thumbnail","product_cat-screw","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product\/3833","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/media\/3834"}],"wp:attachment":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/media?parent=3833"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_brand?post=3833"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_cat?post=3833"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_tag?post=3833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}