Product Summary

롱제 나무 나사 (also known as Timber Screws) are precision-manufactured according to DIN 95/96/97 그리고 ASME B18.6.1 standards, widely used in carpentry, furniture manufacturing, decking, and timber

framing. Featuring a tapered shank and sharp, deep threads, these 롱제 나무 나사 are designed to grip wood fibers tightly, providing a high-strength connection that resists pulling out while allowing for the

natural expansion and contraction of timber.

• ✔ Specialized Thread Geometry: Coarse, sharp threads are engineered to cut into wood without splitting the grain, ensuring a clean and secure fit.

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• ✔ Multiple Head Profiles: Available in Round Head (DIN 96), Countersunk (DIN 97), 그리고 Raised Countersunk (DIN 95) to suit both structural and decorative requirements.

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• ✔ High-Grade Materials: 롱제 offers premium 탄소강 for indoor furniture and Marine Grade Stainless Steel for long-lasting outdoor structures and decking.

Key Features of 나무 나사

• Smooth Shank Segment – The unthreaded portion of the shank (on longer screws) allows the top board to be pulled tightly against the bottom board for a gap-free joint.

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• Self-Centering Points – Sharp, gimlet points ensure the screw starts quickly and stays on track, reducing the effort required for manual or power driving.

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• Superior Corrosion Resistance – Offered in Yellow Zinc for indoor aesthetics and Hot-Dip Galvanized 또는 SS316 for extreme weather exposure.

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• Global Standard Compliance – Fully compatible with Metric (DIN/ISO) 그리고 Imperial (ASME) woodworking specifications.

Technical Specifications

• Standards: DIN 95 / DIN 96 / DIN 97 / ISO 7050 / ASME B18.6.1

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• Metric Size Range: 2.0 mm to 10.0 mm (Diameter)

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• Inch Size Range: #2 to #24 (Diameter)

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• Head Styles: Flat (Countersunk), Round, Oval (Raised Countersunk)

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• Drive Types: Slotted, Phillips, Pozi, Torx (6-Lobe)

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• Finish: Zinc Plated (Clear/Yellow), Black Oxide, Brass Plated, Plain

• Material & Mechanical Properties

• 재료	등급	Tensile Strength	Feature	애플리케이션
  탄소강	C1018 / C1022	400 to 550 MPa	High Ductility	Indoor Furniture / Cabinetry
  스테인리스 스틸	SS304 (A2)	$\ge 500$ MPa	Rust Resistant	Decks / Fencing / Windows
  스테인리스 스틸	SS316 (A4)	$\ge 600$ MPa	Acid Resistant	Marine Gear / Coastal Decks
  Solid Brass	H62 / H65	Medium	Non-Corrosive	Restoration / Decorative

• Standard Dimensions (Metric DIN 97 - Countersunk)

• Size (d)	Head Dia (dk max)	Head Height (k max)	Thread Length (b)	Drive Size
  3.5 mm	6.50 mm	1.93 mm	0.6 to 0.9 x L	PH2 / PZ2
  4.0 mm	7.50 mm	2.20 mm	0.6 to 0.9 x L	PH2 / PZ2
  5.0 mm	9.20 mm	2.50 mm	0.6 to 0.9 x L	PH2 / PZ2
  6.0 mm	11.00 mm	3.00 mm	0.6 to 0.9 x L	PH3 / PZ3

• Surface Treatment

• Coating	Process	Salt Spray	애플리케이션
  Yellow Zinc	Electroplating	72 to 144h	General Carpentry / Yellow Wood
  Hot-Dip Galvanized	Molten Zinc	500 to 800h	Fencing / Treated Lumber
  Brass Plated	Electroplating	24 to 48h	Antique Furniture Repair
  Black Oxide	Chemical	24 to 48h	Decorative / Interior Design