Slotted Pan Head Machine Screws

The Slotted Pan Head Machine Screws supplied by Hebei Dongshao Fastener Manufacturing Co., Ltd are fully threaded fasteners engineered for secure metal-to-metal connections The pan head design provides a low-profile seating surface, while the slotted drive allows for simple installation and removal using a common flat-blade screwdriver These machine screws are available in a comprehensive range of thread sizes from M1.6 to M10, accommodating various assembly requirements The fully threaded body ensures maximum engagement with tapped holes or nuts, delivering reliable holding power across applications

 

Materials & Surface Treatment

Hebei Dongshao Fastener Manufacturing Co., Ltd offers Slotted Pan Head Machine Screws in two primary material categories:

Material Type	Description	Key Characteristics
Carbon Steel	Low, medium, and high carbon steel grades	Cost-effective; suitable for general-purpose applications; available with surface coatings
Stainless Steel	Corrosion-resistant grades	Superior rust and oxidation resistance; extended service life in challenging environments

Surface Treatment Options:

Zinc plating (bright zinc, blue passivation, or thick-layer passivation)

Nickel plating

Passivation (for stainless steel)

Custom finishes available upon request

 

Product Specifications

Hebei Dongshao Fastener Manufacturing Co., Ltd produces Slotted Pan Head Machine Screws conforming to DIN 85 / ISO 1580 standards The following table details dimensional specifications for standard metric sizes:

 

(mm)	M1.6	M2	M2.5	M3	M3.5	M4	M5	M6	M8	M10
P	0.2|0.35	0.25|0.4	0.35|0.45	0.35|0.5	0.35|0.6	0.5|0.7	0.5|0.8	0.75|1	1|1.25	1|1.25|1.5
dk max	3.2	4	5	5.6	7	8	9.5	12	16	20
dk min	2.9	3.7	4.7	5.3	6.64	7.64	9.14	11.57	15.57	19.48
da max	2	2.6	3.1	3.6	4.1	4.7	5.7	6.8	9.2	11.2
k max	1	1.3	1.5	1.8	2.1	2.4	3	3.6	4.8	6
k min	0.86	1.16	1.36	1.66	1.96	2.26	2.88	3.3	4.5	5.7
n max	0.6	0.7	0.8	1	1.2	1.51	1.51	1.91	2.31	2.81
n min	0.46	0.56	0.66	0.86	1.06	1.26	1.26	1.66	2.06	2.56
r min	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.4	0.4
t min	0.35	0.5	0.6	0.7	0.8	1	1.2	1.4	1.9	2.4

Product Features

The Slotted Pan Head Machine Screws from Hebei Dongshao Fastener Manufacturing Co., Ltd offer the following performance characteristics:

Slotted Drive Design The single-slot configuration is compatible with standard flat-blade screwdrivers, enabling universal installation without specialized tools The slot geometry ensures reliable torque transmission during tightening

Pan Head Configuration The pan head shape provides a broad bearing surface that distributes clamping pressure evenly across the fastened component, reducing the risk of surface damage The low-profile design allows the screw to seat flush against the work surface

Full Threading All screws are fully threaded from head to tip, maximizing thread engagement and pull-out resistance when used with nuts or tapped holes

Smooth Surface Finish Manufacturing processes ensure a clean, burr-free surface without corrosion, oxidation, or other surface defects This contributes to consistent performance and extended service life

Corrosion Resistance Stainless steel variants offer inherent corrosion resistance Carbon steel options with zinc plating or other coatings provide protection against environmental degradation

 

Applications

Hebei Dongshao Fastener Manufacturing Co., Ltd Slotted Pan Head Machine Screws are suitable for a broad range of applications across multiple industries:

Application Area	Typical Uses
Machinery & Equipment	Fixing components, handles, covers, and access panels
Automotive	Attaching number plates, headlight covers, interior trim, and under-hood components
Electronics	Enclosure assembly, component mounting, and chassis fastening
Furniture Manufacturing	Connecting and securing parts such as drawers and door panels
Building & Decoration	Interior decorative panels, ceiling systems, and fixture mounting
Industrial Infrastructure	Metal panels, switch cabinets, guard rails, and conveyor systems

 

Standards & Compliance

Hebei Dongshao Fastener Manufacturing Co., Ltd produces Slotted Pan Head Machine Screws in accordance with international and national standards:

Standard	Description
DIN 85 A	German standard for slotted pan head screws (withdrawn, superseded by ISO 1580)
ISO 1580	International standard for slotted pan head screws, metric series
GB/T 67	Chinese national standard for slotted pan head screws, Grade A
ANSI/ASME B18.6.3	US standard for slotted and recessed head machine screws

Thread fit conforms to 3A/2A specifications for consistent engagement and reliable performance

 

Packaging, Shipping & Service

Hebei Dongshao Fastener Manufacturing Co., Ltd prioritizes product protection and customer service:

Packaging

Standard packaging: Cartons with inner plastic bags

Moisture-proof, shock-proof, and contamination-resistant materials to ensure product integrity during transit

Custom packaging available upon request

Shipping

Flexible shipping options available

Products exported to Southeast Asia, Europe, North America, Africa, and other regions

 

Service Support

Pre-sale: Product education, technical consultation, and customized solutions

In-sale: Order processing, logistics tracking, and timely delivery

After-sale: Professional support, maintenance guidance, and technical assistance

 

FAQ

Q: Are you a trading company or a factory A: We are a production-oriented factory with in-house manufacturing capabilities, including cold heading, hot stamping, and heat treatment facilities

Q: What materials are available for Slotted Pan Head Machine Screws A: We offer carbon steel (low, medium, and high carbon grades) and stainless steel Various surface treatments are available including zinc plating, nickel plating, and passivation

Q: What standards do your products meet A: Our Slotted Pan Head Machine Screws conform to DIN 85, ISO 1580, GB/T 67, and ANSI/ASME B18.6.3 standards

Q: Can you provide custom sizes or specifications A: Yes, we welcome custom orders We can produce according to customer drawings and specifications

Q: What is your packaging method A: Standard packaging uses cartons with inner plastic bags Customized packaging options are available upon request

Q: Do you inspect finished products A: Yes, our quality control department conducts inspections at each production stage and on finished products before shipping

Q: What industries do your products serve A: Our fasteners are used in construction, machinery, automotive, railway, electronics, furniture, photovoltaic solar, and infrastructure sectors