1、 WORLDWIDE FASTENER STANDARD WX 100 2016 04 13 Printed copies are uncontrolled Copyright 2016, Ford Global Technologies, LLC Page 1 of 19 FINISH SPECIFICATION 1. SCOPE The following specifications cover requirements for finishes used on Worldwide Standard and Utility Parts. NOTE: Obsolete finish spe
2、cifications are not shown in this standard. If a finish is referenced that is not shown in this standard, the user should contact the local Fastener Engineering Office for direction. 2. APPLICATION Recommended usage included in the description of individual finishes is intended for information only.
3、 2.1 RECOMMENDED USAGE Fastener finishes should be selected per the Global Fastener Finish Strategy. See link below: https:/ Please review with the appropriate fastener engineering department when releasing finishes not per the Global Fastener Finish Strategy. 3. DESIGNATION The finish required on a
4、 standard or utility part is designated by adding the appropriate Finish Code to the Part Number as a suffix when a part is released. FINISH CODES SHALL NOT BE INCLUDED IN THE PART NUMBER BLOCK ON A UTILITY PART DRAWING. The Finish Code is obtained from Clause 6, DETAILED FINISH DESCRIPTIONS AND REQ
5、UIREMENTS. The Finish Code consists of letter S followed by a number and designation alpha codes (except “SSW“). The release for a standard or utility part is incomplete without the addition of a finish code to the Part Number. WORLDWIDE PART NUMBERS MUST BE RELEASED WITH A WORLDWIDE FINISH NUMBER.
6、3.1 DESIGNATION EXAMPLE (NOT TO EXCEED 8 CHARACTERS) Example: S437MXA S 437 M XA/DA Standard/Utility Part Suffix Indicator Worldwide Suffix Number (300 or 400 series) Process/Color Indicator (B=Black, H=High Performance, L=Enhanced Lubrication, M=Mechanical Non-Electrolytic, U=Unlubricated) Subseque
7、nt Treatment / Delivery Condition Indicator N0TE: In the past, a number “1“ after the S was used to indicate that the part was to be used in an automatic assembly application. This convention is no longer used. SUBSEQUENT TREATMENTS are treatments such as the addition of waxes for sealing on sheet m
8、etal screws or wax on hose clamps to lower the friction between the clamp and hose. These subsequent treatments are specified in WSS-M21P27-A1/A2/A3/A4/A5. See (Table 1) and link below: http:/ b) immersing the basket into a tank of the uncured material; c) elevating the basket above the tank; and e)
9、 spinning the basket above the tank. The baskets rotational speed overcomes the centripetal force, shedding excess material to provide the desired coating thickness. Material viscosity, fastener geometry, fastener orientation in the basket, load size, and rotational speed are major factors in the ap
10、plication of these finishes. 5.6.2 Internally driven fasteners (recess drive), fasteners with internal cavities such as nuts, rivets, parts with extruded, closed-end holes, parts with through-holes, fasteners with fine pitch threads, and other similar features trap excess material in the cavities, w
11、hich the spinning process does not completely remove. WORLDWIDE FASTENER STANDARD WX 100 2016 04 13 Printed copies are uncontrolled Copyright 2016, Ford Global Technologies, LLC Page 5 of 19 5.6.3 CAUTION: If the dip spin process is used to apply coatings to fasteners with these design features, a p
12、ercentage of the fasteners will have recess fill, clogged holes, bubbled coating, and/or thread bridging. As a result, fasteners with these finishes and designs may experience issues with form, fit, and function at the assembly plants. 5.6.4 To avoid these issues, consider applying the dip spin fini
13、sh using a different process method such as spray, tumble spray, and planetary rotary systems. These processes may significantly reduce recess fill, but will still yield some recess fill. Alternatively, consider externally driven fastener designs, non-dip spin finishes, and plated finishes. Note: Di
14、p Spin coatings are identified under their respective finish descriptions within this specification. 5.7 MECHANICALLY DEPOSITED PLATINGS BEAD ENTRAPMENT 5.7.1 Mechanical plating, also known as peen plating, mechanical deposition, or impact plating, is a plating process that imparts the coating by co
15、ld welding fine metal particles to a workpiece. It is commonly used to overcome the potential for hydrogen embrittlement. The process involves tumbling the workpieces with a mixture of water, metal powder, media, and additives. The media material is usually soda lime glass or a ceramic and is usuall
16、y spherical in form. Common coating materials are zinc, tin, copper, and aluminum. 5.7.2 Internally threaded fasteners and fasteners with an integrated or free-spinning assembled washers such as nut and washer assemblies (KEPS) or screw and washer assemblies (SEMS) have the potential for bead entrap
17、ment in the thread form, between the assembled washer or other part cavities, which the mechanical plating process does not completely remove. To prevent the potential from impeding the assembly process or functionality of the fastener, mechanical plating shall not be released on these parts. This p
18、rovision applies to all thread sizes and forms. 6. DETAILED FINISH DESCRIPTIONS AND REQUIREMENTS SSW IN WHITE (COLOR KEYED) PARTS When Standard or Utility parts are designated “In White“ and are therefore required to comply with a color chart or master sample, they shall be released with the suffix
19、SSW. S300 PLAIN: No supplementary finish required other than the finish considered the normal result of manufacturing processes for the material and product involved. Total Thickness: Not applicable Lubricant: ISO general purpose metric screw threaded steel fasteners whose thread form is in accordan
20、ce with ISO 261 and/or whose material and performance requirement reference ISO 898-1 or 898-2 shall be lubricated per WSD-M13P7-A. Not applicable on plastic parts. Color: Not applicable Specifications: Not applicable Corrosion Protection: See paragraph 5.2 (part condition) for FCSD requirements Ser
21、vice Temperature: Not applicable Coating Process: Not applicable Friction Coefficient: u=0.15 +/-0.03 per WZ101 Program B using test surfaces per WZ100. Approved Source: Not Applicable Tox Number: Not Applicable Special Requirements: Lubricated parts shall meet the requirements for torque/clamping f
22、orce specified in WZ 100 or the requirements of the individual product specification, e.g., Prevailing Torque Nuts WE 950. Weld, Pierce, Clinch and non-metallic fasteners shall not be lubricated. All other fasteners that do not fully conform to the aforementioned requirements shall not be lubricated
23、, e.g., Tapping Screws WD 950/953, Single Threaded Spring Nuts WE 953. WORLDWIDE FASTENER STANDARD WX 100 2016 04 13 Printed copies are uncontrolled Copyright 2016, Ford Global Technologies, LLC Page 6 of 19 Recommended Usage: Generally used on weld, pierce or clinch bolts and/or nuts for “Body in W
24、hite” applications, aluminum rivets, and plastic fasteners. For recommended usage see Global Finish Strategy referenced in paragraph 2.0. S303 BLACK ORGANIC CORROSION PROTECTION COATING: This finish is a black organic protective coating 35 units sub-gloss. It is low temperature heat cured from organ
25、ic media. Total Thickness: 5.0 micrometres, min.; 15 20 micrometres typical Lubricant: Integral friction modifiers in topcoat. No additional waxes, lubricants or torque tension fluids are necessary. Color: Black Specifications: WSD-M21P10-B2 FLTM BI 110-1 Corrosion Protection: 120 hour salt spray Se
26、rvice Temperature: 175 oC Coating Process: If applied by a Dip Spin method, see Section 5.6 on recess fill. Friction Coefficient: u=0.15 +/-0.03 per WZ101 Program B using test surfaces per WZ100. Approved Source: Many (See MATS approved source list) Tox Number: IRB030 (all) Special Requirements: ISO
27、 general purpose metric screw threaded steel fasteners whose thread form is in accordance with ISO 261 and/or whose material and performance requirement reference ISO 898-1 or 898-2 shall meet the requirements for torque/clamping force specified in WZ 100 or the requirements of the individual produc
28、t specification, e.g., Thread Rolling Screws WD 951/952, Prevailing Torque Nuts WE 950. If a lubrication process is required to satisfy this requirement, it will be an integral dry self-lubrication system. Recommended Usage: Generally used on externally driven screws for interior applications. Not r
29、ecommended for nuts or recessed drive screws. For recommended usage see Global Finish Strategy referenced in paragraph 2.0. S306 BLACK ORGANIC CORROSION PROTECTION COATING: (NOT FOR NEW DESIGN) This finish is a black organic protective coating 35 units sub-gloss. Total Thickness: 5.0 micrometres, mi
30、n.; 15 20 micrometres typical Lubricant: Integral friction modifiers in topcoat. No additional waxes, lubricants or torque tension fluids are necessary. Color: Black Specifications: WSD-M21P10-B3 FLTM BI 110-1 Corrosion Protection: 240 hour salt spray Service Temperature: 200 - 230 oC Intermittent,
31、150 - 180 oC Continuous Coating Process: If applied by a Dip Spin method, see Section 5.6 on recess fill. Friction Coefficient u=0.15 +/-0.03 per WZ101 Program B using test surfaces per WZ100. Approved Source: Whitford Plastics Ltd. Xylan 5230 Tox Number: IRB030 Special Requirements: ISO general pur
32、pose metric screw threaded steel fasteners whose thread form is in accordance with ISO 261 and/or whose material and performance requirement reference ISO 898-1 or 898-2 shall meet the requirements for torque/clamping force specified in WZ 100 or the requirements of the individual product specificat
33、ion, e.g., Thread Rolling Screws WD 951/952, Prevailing Torque Nuts WE 950. If a lubrication process is required to satisfy this requirement, it shall be an integral, dry, self lubrication system. Recommended Usage: Generally used on externally driven screws for interior applications. Not recommende
34、d for nuts or recessed drive screws. Not recommended for new design. WORLDWIDE FASTENER STANDARD WX 100 2016 04 13 Printed copies are uncontrolled Copyright 2016, Ford Global Technologies, LLC Page 7 of 19 S307 BLACK ZINC ORGANIC CORROSION PROTECTION COATING: This finish is a black organic protectiv
35、e coating 35 units sub-gloss. Total Thickness: 11.0 micrometres, min.; 13 20 micrometres typical Lubricant: Integral friction modifiers in topcoat. No additional waxes, lubricants or torque tension fluids are necessary. Color: Black Specifications: WSD-M21P11-B2 Corrosion Protection: 480 hour salt s
36、pray Service Temperature: 200 - 230 oC Intermittent, 150 - 180 oC Continuous Coating Process: If applied by a Dip Spin method, see paragraph 5.6 on recess fill. Friction Coefficient u=0.15 +/-0.03 per WZ101 Program B using test surfaces per WZ100. Approved Source: Ewald Dorken 10 15 micrometres typi
37、cal Lubricant: Friction Modified Sealer Color: Black Specifications: WSS-M21P41-A Corrosion Protection: 120 hour salt spray Service Temperature: 200 oC Coating Process: Electrophoresis Friction Coefficient: u=0.11 +/-0.03 per WZ101 Program B. Approved Source: PPG Industries Inc. Electrophoretic Irco
38、seal + Sealcoat S424 Tox Number: IRB029 Special Requirements: The sealer is a water based corrosion protection fluid; it shall be dry to the touch. ISO general purpose metric screw threaded steel fasteners whose thread form is in accordance with ISO 261 and/or whose material and performance requirem
39、ent reference ISO 898-1 or 898-2 shall meet the requirements for torque/clamping force specified in WZ 100 or the requirements of the individual product WORLDWIDE FASTENER STANDARD WX 100 2016 04 13 Printed copies are uncontrolled Copyright 2016, Ford Global Technologies, LLC Page 9 of 19 specificat
40、ion, e.g., Thread Rolling Screws WD 951/952, Prevailing Torque Nuts WE 950. For initial sample/Engineering Approval only, sealers used for this finish shall not cause a stress cracking concern when tested against commonly used nonmetallic materials. The test shall be in accordance with ISO 4599. Rec
41、ommended Usage: Generally used on small diameter screws for interior applications where recess fill or thread fill is concern. Also used on spring type “U” nuts and steel clips or other interior parts where hydrogen embrittlement is a concern. Not recommended for general nuts due to potential for hy
42、draulic lockup. Not recommended for new design. S430 PHOSPHATE AND LUBRICANT: (NOT FOR NEW DESIGN) This finish consists of a zinc iron or manganese iron phosphate coating plus a specified approved lubricant. Total Thickness: Not applicable Lubricant: ISO general purpose metric screw threaded steel f
43、asteners whose thread form is in accordance with ISO 261 and/or whose material and performance requirement reference ISO 898-1 or 898-2 shall be lubricated with a specified approved lubricant which meets the requirements of WZ 100. Color: Black Specifications: WSD-M3P35-A1/A2 WSD-M21P19-A30 (for app
44、roved lubricants) Corrosion Protection: None Service Temperature: 50 oC Coating Process: Barrel process Friction Coefficient: u=0.15 +/-0.03 per WZ101 Program B using test surfaces per WZ100. Approved Source: PPG Industries Inc. Rustarest 260 or 53253 Tox Number: 175008 (260), 185597 (53253) Special
45、 Requirements: Coated parts offer no corrosion protection and should only be used for internal applications where corrosion protection is not a requirement. Lubricated parts shall meet the requirements for torque/clamping force specified in WZ 100 or the requirements of the individual product specif
46、ication, e.g., Thread Rolling Screws WD 951/952, Prevailing Torque Nuts WE 950. Fasteners that do not fully conform to the aforementioned requirements shall not use this finish suffix. Recommended Usage: Used on externally driven screws for internal engine and transmission applications for the contr
47、ol of torque/clamping force performance. Not recommended for new design. S431 METALLIC GRAY CORROSION PROTECTIVE COATING: This finish is a water-dilutable aluminum filled chromate/phosphate compound which requires an oven baking cycle to cure and shall have a uniform metallic gray appearance after f
48、ull processing. The process consists of cleaning the components by abrasive blasting followed by two coats of the aluminum-filled compound applied by the dip spin process and curing at a nominal temperature of 340 oC. The surface is then burnished using glass beads finally lubricated with a dry to t
49、he touch wax lubricant. Total Thickness: 15.0 - 20.0 micrometres for threaded components Lubricant: Dry to the touch wax lubrication Color: Gray Specifications: WSD-M21P19-A31 Corrosion Protection: 408 hour salt spray Service Temperature: Maximum of 645 oC Coating Process: If applied by a Dip Spin method, see paragraph 5.6 on recess
