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Cross-recessed (+) pan head I=4 (SW + ISO compact W assembly) machine screw【1-7,000 Pieces Per Package】 (Part Numbers)
- Volume Discount
A spring washer and a compact plain washer are fitted to the pan head screw to prevent it from coming loose.
(i)Caution
- The product images are representative only. Specifications may vary by part number, including shape and color.
Part Number
Configured Part Number is shown.
Drawing
Specifications Table
| Nominal thread size | Machine Screw Main Body | Plain washer D1XT | Spring lock washer | a | ||||
|---|---|---|---|---|---|---|---|---|
| dk | k | Cross-recessed | d1 (Maximum) | |||||
| Cross-recessed number | m (Reference) | |||||||
| M2 | 3.5 | 0 -0.4 | 1.3 +/- 0.1 | 1 | 2.2 | 4.3 x 0.3 | 4 | 2.1 |
| M2.3 | 4 | 0 -0.4 | 1.5 +/- 0.1 | 1 | 2.4 | 4.6 x 0.5 | 4.6 | 2.5 |
| M2.5 | 4.5 | 0 -0.4 | 1.7 +/- 0.1 | 1 | 2.6 | 5 x 0.5 | 4.8 | 2.7 |
| M2.6 | 4.5 | 0 -0.4 | 1.7 +/- 0.1 | 1 | 2.6 | 5 x 0.5 | 4.8 | 2.7 |
| M3 | 5.5 | 0 -0.5 | 2 +/- 0.15 | 2 | 3.6 | 6 x 0.5 | 5.5 | 3.0 |
| M3.5 | 6 | 0 -0.5 | 2.3 +/- 0.15 | 2 | 3.9 | 7 x 0.5 | 6.2 | 3.4 |
| M4 | 7 | 0 -0.5 | 2.6 +/- 0.15 | 2 | 4.2 | 8 x 0.8 | 7 | 4.4 |
| M5 | 9 | 0 -0.6 | 3.3 +/- 0.15 | 2 | 4.9 | 10 x 1.0 | 8.5 | 5.4 |
| M6 | 10.5 | 0 -0.7 | 3.9 +/- 0.2 | 3 | 6.3 | 11.5 x 1.6 | 11.5 | 6.9 |
| M8 | 14 | 0 -0.8 | 5.2 +/- 0.2 | 3 | 7.8 | 15.5 x 1.6 | 14.5 | 8.4 |
| Part Number | Standard Unit Price | Number of pc(s). included in pkg. | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Nominal of Thread (M) | Length L (mm) (mm) | Material | Surface Treatment | Pitch (mm) | Unit of Purchase | Application | Additional Shape | Screw M Diameter | Size (X notation) (mm) | Size (- notation) (mm) | Standard Name (Material) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 0.50 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 6 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.50 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 8 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.50 | 1 Piece(s) | 2 Day(s) or more | 10 | 4 | 10 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 0.55 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 12 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.55 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 14 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.61 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 15 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.61 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 16 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.61 | 1 Piece(s) | 5 Day(s) or more | 10 | 4 | 18 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 0.67 | 1 Piece(s) | 5 Day(s) or more | 10 | 4 | 20 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 0.78 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 22 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.78 | 1 Piece(s) | 5 Day(s) or more | 10 | 4 | 25 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 0.84 | 1 Piece(s) | 5 Day(s) or more | 10 | 4 | 30 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 0.94 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 4 | 35 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 1.06 | 1 Piece(s) | 5 Day(s) or more | 10 | 4 | 40 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 1.23 | 1 Piece(s) | 5 Day(s) or more | 10 | 4 | 45 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 1.35 | 1 Piece(s) | 5 Day(s) or more | 10 | 4 | 50 | [Stainless Steel] Equivalent to SUS304 | - | 0.7 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | |||
MYR 1.51 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 10 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 1.57 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 12 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 1.63 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 14 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 1.63 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 15 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 1.63 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 16 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 1.79 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 20 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 267.13 | 200 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 6 | 25 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 2.24 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 30 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 2.36 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 35 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 2.58 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 6 | 40 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 219.48 | 100 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 6 | 50 | [Stainless Steel] Equivalent to SUS304 | - | 1 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 1,685.71 | 5,000 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 2 | 5 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.4 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 1,314.40 | 4,000 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 2 | 8 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.4 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 0.45 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 2.5 | 6 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.45 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.50 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 2.5 | 8 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.45 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.55 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 2.5 | 10 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.45 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 0.55 | 1 Piece(s) | Available | 5 Day(s) or more | 10 | 2.5 | 12 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.45 | Low Quantity (can be purchased from one) | Standard | Washer Included | - | - | - | - | ||
MYR 590.00 | 1,500 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 2.5 | 14 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.45 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 514.70 | 1,000 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 2.5 | 20 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.45 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 511.55 | 1,000 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 4 | 10 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.7 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 505.71 | 1,000 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 4 | 12 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.7 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 280.95 | 500 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 4 | 16 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.7 | Box/package | Standard | Washer Included | - | - | - | - | |
MYR 309.04 | 500 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) or more | 10 | 4 | 20 | [Stainless Steel] Equivalent to SUS304 | [Black Paint] Black Paint | 0.7 | Box/package | Standard | Washer Included | - | - | - | - |
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Basic Information
| Mounting Hole Shape | Cross-Head | Detailed Shape | Pan | Basic Shape | Standard (Round) |
|---|---|---|---|---|---|
| Thread Type | Metric coarse | Tip Shape | Flat End |
Specification/Dimensions
-
Nominal of Thread (M)
-
Length L (mm)(mm)
-
Material
- Steel
- Stainless Steel
- Brass
- Steel
-
Surface Treatment
- Not Provided
- Chromium free
- Trivalent Chromate
- Bright Chrome Plating
- Chromate Plating
- Nickel Plating
- Copper Plating
- Black Paint
- Not Provided
-
Pitch(mm)
-
Unit of Purchase
-
Application
- Standard
-
Additional Shape
-
Washer Included
-
-
type
- CSPPNZI
- CSPPNZI-BR-M
- CSPPNZI-BRH-M
- CSPPNZI-BRN-M
- CSPPNZI-ST-M
- CSPPNZI-ST3B-M
- CSPPNZI-ST3W-M
- CSPPNZI-STC-M
- CSPPNZI-STCB-M
- CSPPNZI-STCNW-M
- CSPPNZI-STGCU-M
- CSPPNZI-STH-M
- CSPPNZI-STN-M
- CSPPNZI-STNB-M
- CSPPNZI-STU-M
- CSPPNZI-SUS-M
- CSPPNZI-SUSTBS-M
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 2 Day(s) or Less
- 5 Day(s) or Less
- 10 Day(s) or Less
- 13 Day(s) or Less
- 14 Day(s) or Less
- 22 Day(s) or Less
- 43 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What is the advantage of using pan head screws with an integrated spring lock washer and captive washer?
-
Answer:
The integration of a spring lock washer and ISO small captive washer into the pan head screw design provides two main advantages:
•Prevention of washer loss during handling or transportation
•Faster and more efficient assembly, especially in automated or high-speed production environments.
This design eliminates the need to manually position washers, improving both convenience and consistency during fastening. - Question: What makes cross head screws ideal for precision fastening applications?
- Answer: Cross head screws (also known as Phillips head screws) are designed for controlled torque application, reducing the risk of over-tightening or slippage. This makes them ideal for small screws used in electronics, precision instruments, and modular assemblies, where consistent fastening is critical.
- Question: How does the spring lock washer help in maintaining long-term fastening stability?
- Answer: The spring lock washer applies continuous tension against the mating surface, which helps resist loosening caused by vibration, thermal expansion, or minor shifting. In applications where fasteners are subjected to repetitive motion or varying temperatures, this built-in washer significantly enhances reliability.
- Question: Can these small screws be used in automated assembly lines?
- Answer: Yes, these small screws are especially suitable for automated assembly. The captive washer design ensures the components remain attached to the screw, eliminating the need for extra parts handling by the machine. This reduces pick-and-place errors and increases efficiency in robotic systems or conveyor-based production.
- Question: What materials are available for these cross head pan head screws, and how should I choose one?
-
Answer:
The screws are available in Steel (SWCH equivalent), Stainless Steel (SUS304 equivalent), and Brass.
•Use Steel for general mechanical fastening where strength is prioritized.
•Stainless Steel is ideal for corrosion-resistant applications or outdoor environments.
•Brass offers excellent conductivity and is typically used in electrical and low-friction applications. - Question: How do the available surface treatments improve screw performance?
-
Answer:
Surface treatments provide enhanced protection, durability, and aesthetic appeal. For example:
•Nickel plating improves wear resistance and conductivity.
•Trivalent chromate (black, white) provides corrosion resistance without using hazardous hexavalent chromium.
•Black paint offers basic surface protection with a low-reflective finish, commonly used in consumer electronics.
Choosing the right finish depends on environmental conditions, electrical conductivity requirements, and appearance preferences.
- Question: Are these pan head screws reusable after disassembly?
- Answer: In most cases, yes. The pan head screws with integrated spring lock washers and captive washers can be reused if the threads are not damaged and the washers retain their shape. However, if the spring lock washer has flattened or deformed due to prolonged compression or over-torquing, replacement is recommended to ensure continued vibration resistance and holding strength.
Additional Products in this Category
- Cross-Head Pan Head Screw PK = 1 (JIS Small Captive Washer) Machine Screws
- Hex trimmer P=3 (SW+JIS W assembled)
- Hexagon socket head cap screw (cap screw) P = 3 (SW + JIS Plain W)
- Bolts with Washers (Upset Type)
- Iron Sunco Tap-tight (+)S-type Pan P = 3 (SW+JIS W inclusion)
- Steel Terminal Screw (Cross-Head / Straight Slot Combo Drive), Pan Head H Type (Square head with wire retainer embedded on opposite sides)
- Iron Terminal Screw Plus/Minus Head SC-type (spak washer + rectangular seat included)
- Porous (+) Panhead P = 4 (for Thin Plate)
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