Phillips Pan Head Self Tapping Screws

 

 

 

Product Name	Phillips Pan Head Self-Tapping Screws
Also Named	Cross Recessed Tapping Screws
Material	Steel
Standard	ISO 7049
Alternative standard	GB /T 845, DIN EN ISO 7049, UNI 6954, NF E 25-658
Property Class	A
Form/Shape Of Tip	C
Diameter	ST2.2/ ST2.9/ ST3.5/ ST4.2/ ST4.8/ ST5.5/ ST6.3/ ST8/ ST9.5
Finish	Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type	Pan Head
Drive Type	Cross Drive
Thread Type	Self-Tapping Screw Thread

 

 

Common Screws Styles

 

Screw Thread d			ST2.2	ST2.9	ST3.5	ST4.2	ST4.8	ST5.5	ST6.3	ST8	ST9.5
P	Pitch		0.8	1.1	1.3	1.4	1.6	1.8	1.8	2.1	2.1
a	max		0.8	1.1	1.3	1.4	1.6	1.8	1.8	2.1	2.1
dk	max		4	5.6	7	8	9.5	11	12	16	20
	min		3.7	5.3	6.64	7.64	9.14	10.57	11.57	15.57	19.48
k	max		1.6	2.4	2.6	3.1	3.7	4	4.6	6	7.5
	min		1.4	2.15	2.35	2.8	3.4	3.7	4.3	5.6	7.1
Socket No.			0	1	2	2	2	3	3	4	4
M1	Type H	Ref.	1.9	3	3.9	4.4	4.9	6.4	6.9	9	10.1
Penetration depth	Type H	max	1.2	1.8	1.9	2.4	2.9	3.1	3.6	4.7	5.8
		min	0.85	1.4	1.4	1.9	2.4	2.6	3.1	4.15	5.2
M2	Type Z	Ref.	2	3	4	4.4	4.8	6.2	6.8	8.9	10.1
Penetration depth	Type Z	max	1.2	1.75	1.9	2.35	2.75	3	3.5	4.5	5.7
		min	0.95	1.45	1.5	1.95	2.3	2.55	3.05	4.05	5.25
y	Type C	Ref.	2	2.6	3.2	3.7	4.3	5	6	7.5	8
	Type F	Ref.	1.6	2.1	2.5	2.8	3.2	3.6	3.6	4.2	4.2
	Type R	Ref.	-	-	2.7	3.2	3.6	4.3	5	6.3	-

 

Custom Screws

Non-standard samples are developed and processed according to drawings. Learn more about the custom screw service of AYA.

 

Product Name	Custom Fasteners / Non Standard Fasteners
Raw Materials	Carbon Steel / Stainless Steel / Aluminum / Brass / Nickel Alloy / Titanium / etc.
Size	Customized by your drawing
Surface Treatment	Plating / Coating / Passivation / Anodizing / Galvanizing / Phosphating / Blackening / Chromating / Nitriding / Oxidation coating / Zinc-Nickel plated / Dacromet
Testing Equipment	Coordinate Measuring Machine(CMM) / Salt Spray Test Chambers / 3D Scanners / Ultrasonic Flaw Detector
Services	OEM / ODM / Customized Services / Free Sample
Certificate	IATF 16949 / ISO 9001 / ISO 14001 / ISO 45001
File Formats	STEP / CATPart / Prt / Solid Works / Pro/E / AutoCAD (DXF, DWG) / PDF / JPG / etc

 

 

 

 

 

1. Minimize the risk of jamming the screw head during use, ensuring smooth installation.
2. Offer flexible applicability, suitable for scenarios where hex heads may seize or look mismatched, as well as materials that are not thick enough to support countersunk screws or holes.
3. Can be easily secured with a screwdriver, featuring convenient and efficient operation.
4. The pan head design boasts a certain decorative effect, balancing practicality and aesthetics.
5. Deliver reliable performance in light-duty applications with strong adaptability.

 

 

 

• Electronic equipment assembly (e.g., distribution boxes, small appliance housing fixation): suitable for thin plate structures, balancing easy installation and a neat appearance.
• Furniture manufacturing (e.g., panel furniture surfaces, decorative accessory connections): the pan head offers strong decorativeness, and can be stably fixed on thinner plates without damaging the base material.
• Lightweight machinery and hardware accessories (e.g., small mechanical equipment covers, hardware bracket assembly) : suitable for non-load-bearing structures, not easy to seize during installation, ensuring assembly efficiency.
• Decoration projects (e.g., indoor decorative panels, lightweight ceiling fixation): coordinated appearance for exposed installation, combining fixing function and decorative effect.
• Connection of plastic and thin metal parts (e.g., plastic housings, thin steel plate component assembly): self-tapping feature adapts to low-thickness materials, no pre-drilling required, with convenient operation.

 

 

As a trusted global supplier of customized fastening solutions, AYA Fasteners has earned the confidence of distributors, contractors, and OEM partners across multiple industries. We provide not only products but also reliable solutions, stable supply, and long-term value.

 

• 9+ Years of Industry Expertise
  AYA Fasteners (Hebei) Co., Ltd. is one of the most experienced manufacturers and suppliers of hex washer head self-drilling screws in China. With a deep understanding of both production and global trade, we provide a stable, high-quality supply for projects of all scales. Learn more about our Company Profile.

 

• Global Supply & On-Time Delivery
  With overseas warehouses and efficient logistics networks, AYA ensures shorter lead times and flexible delivery options, helping partners maintain supply chain agility and cost-efficiency.

 

• Customized Fastening Solutions
  AYA Fasteners has provided exclusive fastening solutions to over 1,000 customers worldwide. From understanding your project requirements to after-sales support, our dedicated team works closely with you to solve fastening challenges quickly and effectively.

 

• Stable Quality, Trusted by Professionals
  Our screws are made from premium materials with strict quality control at every stage. We are committed to delivering products that meet international standards and perform reliably in demanding applications.

 

• Sustainability & Long-Term Commitment
  AYA is actively promoting eco-friendly practices in manufacturing and logistics, aiming to reduce environmental impact while improving production efficiency.

 

 

 

 

AYA holds multiple international certifications, ensuring full compliance with global standards in product quality, environmental responsibility, and occupational health & safety.

 

 

 

 

 

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