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  Exhibit 4.8    
    

[FORM OF NOTICE OF GUARANTEED DELIVERY]

GRIFFON CORPORATION  

NOTICE OF GUARANTEED DELIVERY

RELATING TO SHARES SUBSCRIBED FOR PURSUANT

TO THE SUBSCRIPTION RIGHT AND OVER-SUBSCRIPTION RIGHT  

        As set forth in Griffon Corporation's (the "Company's") Prospectus, dated
[                        ], 2008, under "The Rights Offering—Payment for Shares," this form (or one substantially equivalent
hereto) may be used as a means of effecting the
subscription and payment for shares of common stock, par value $0.25 per share, of the Company subscribed for pursuant to the subscription right and the over-subscription right. Such form
may be delivered or sent by facsimile transmission, overnight delivery or first class mail to the Subscription Agent and must be received prior to 5:00 p.m., New York City time, on
[                        ], 2008, the expiration date, unless extended by the Company in its sole discretion (as it may be
extended, the "Expiration
Date"). 

The
Subscription Agent is:

AMERICAN STOCK TRANSFER & TRUST COMPANY

Attention: Griffon Corporation Rights Offering 

			
	By First Class Mail Only
 (No Overnight/Express Mail):

Attn: Reorganization Department

59 Maiden Lane

New York, New York 10038	 	 By Hand or Overnight Delivery:

Operations Center

Attn: Reorganization Department

6201 15th Avenue

Brooklyn, New York 11219

By Facsimile:

(718) 234-5001 

Fax
Confirmation by Telephone to:

(718) 921-8317 

        DELIVERY
OF THIS INSTRUMENT TO AN ADDRESS, OR TRANSMISSION OF INSTRUCTIONS VIA A FACSIMILE NUMBER, OTHER THAN AS SET FORTH ABOVE DOES NOT CONSTITUTE A VALID DELIVERY. 

        The
Eligible Guarantor Institution (as that term is defined in Rule 17Ad-15 of the Securities Exchange Act of 1934, as amended), which may include (i) a
commercial bank or trust company, (ii) a member firm of a domestic stock exchange or (iii) a savings bank or credit union, that completes this form must communicate the guarantee and the
number of shares of common stock subscribed for pursuant to both the subscription right and the over-subscription right to the Subscription Agent and the Subscription Agent must receive
this Notice of Guaranteed Delivery at or prior to the Expiration Date, guaranteeing delivery to the Subscription Agent of (a) full payment for all shares of common stock subscribed for pursuant
to the subscription right and the over-subscription right and (b) a properly completed and duly executed Subscription Certificate. The Subscription Certificate and full payment must
be received by the Subscription Agent at or prior to 5:00 p.m., New York City time, on [                        ], 2008 (or,
if the offer is extended, at or prior to
5:00 p.m., New York City time, on the third business day after the Expiration Date). Failure to timely and properly deliver this Notice of Guaranteed Delivery or to make the delivery guaranteed
herein will result in a forfeiture of the rights. 

        This
Notice of Guaranteed Delivery shall not be used to guarantee signatures. If a signature on the Subscription Certificate is required to be guaranteed by an Eligible Guarantor
Institution (as that term is defined in Rule 17Ad-15 of the Securities Exchange Act of 1934, as amended) under the instructions to the Subscription Certificate, the signature
guarantee must appear in the applicable space provided in the signature box on the Subscription Certificate. 

 GUARANTEE  

        The undersigned, an Eligible Guarantor Institution (as that term is defined in Rule 17Ad-15 of the Securities
Exchange Act of 1934, as amended) guarantees delivery to the Subscription Agent at or prior to 5:00 p.m., New York City time, on
[                        ], 2008 (or, if the
offer is extended, by the close of business on the third business day after the Expiration Date) of (i) a properly completed and duly executed Subscription Certificate and (ii) full
payment of the estimated subscription price for each share of common stock subscribed for pursuant to the subscription right and the over-subscription right, if applicable, as subscription
for such shares is indicated herein and on the Subscription Certificate. 

Broker
Assigned Control # 

 GRIFFON CORPORATION  

									
	1. Subscription Right	 	Number of rights exercised:	 	

	 	rights
	

 	

 	

Number of shares subscribed for pursuant to the subscription right for which you are guaranteeing delivery of the Subscription Certificate and full payment:	

 	

	

 	

shares
	

 	
 	

Payment to be made in connection with subscription right:	
 	

$	
 	

	

 	
 	

 	
 	

(Shares × $8.50, the subscription price)
	

2. Over-Subscription Right	
 	

Number of shares subscribed for pursuant to the over-subscription right (not to exceed 20% of the shares exercised pursuant to the subscription right) for which you are guaranteeing delivery of the Subscription Certificate and full
payment:	
 	

	
 	

shares
	

 	
 	

Payment to be made in connection with over-subscription right:	
 	

$	
 	

	

 	
 	

 	
 	

(Shares × $8.50, the subscription price)
	

3. Totals	
 	

Total number of rights exercised:	
 	

	
 	

rights
	

 	
 	

Total number of shares subscribed for pursuant to the subscription right and over-subscription right for which you are guaranteeing delivery of the Subscription Certificate and full payment:	
 	

	
 	

shares
	

 	
 	

Total payment to be made:	
 	

$	
 	

	

4. Method of Delivery

(Check one):	
 	

 	
 	

 	
 	

 	
 	

 
	

o Through the Depository Trust Company ("DTC")
	

o Direct to American Stock Transfer & Trust Company, as the Subscription Agent.

        Please
assign above a unique control number for each guarantee submitted. This number needs to be referenced on any direct delivery or any delivery through DTC. 

						
	

 
	 	Name of Firm	 	 	 	 
	

 
	 	Authorized Signature	 	 	 	 
	

 
	 	Name (Please print or type)	 	 	 	 
	

 
	 	Title:	 	 	 	 
	

 
	 	DTC Participant Number	 	 	 	 
	

 
	 	Contact Name	 	 	 	 
	

 
	 	Address	 	 	 	 
	

 
	 	City	 	State	 	Zip Code
	

 
	 	Phone Number	 	 	 	 
	

 
	 	Date	 	 	 	 

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Exhibit 4.8QuickLinks
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  Exhibit 4.10    
    

 
    [FORM OF BENEFICIAL OWNER ELECTION FORM]
  
    BENEFICIAL OWNER ELECTION FORM    
    

        The undersigned acknowledge(s) receipt of your letter and the enclosed materials referred to therein relating to the offering of shares
of common stock, par value $0.25 per share (the "Common Stock"), of Griffon Corporation (the "Company"). 

        This
will instruct you whether to exercise rights to purchase shares of Common Stock distributed with respect to the Common Stock held by you for the account of the undersigned, pursuant
to the terms and subject to the conditions set forth in the Company's Prospectus dated [                ], 2008 (the
"Prospectus"). By signing below, the undersigned confirms that (1) after giving effect to the exercise of its rights it will not beneficially
own, as determined in accordance with Rule 13d-3 under the Securities Exchange Act of 1934, as amended, more than 14.99% of the Company's outstanding shares of Common Stock
(calculated immediately upon the closing of the rights offering after giving effect to the Backstop Commitment, as described in the Prospectus) and (2), if it already beneficially owns, as determined
in accordance with Rule 13d-3 under the Securities Exchange Act of 1934, as amended, in excess of 14.99% of the Company's outstanding shares of Common Stock it will not, via the exercise of the
rights, increase its proportionate interest in the Company's Common Stock (with respect to (1) or (2), any such excess shares, the "Excess
Shares"). With respect to any such Excess Shares, the undersigned hereby (1) irrevocably appoints and constitutes the Company, each of its authorized officers and their
designees, and each of them, with full power of substitution, as its proxy and attorney in fact with full authority to vote and act by written consent with respect to any such Excess Shares on any
matter submitted to shareholders for a vote or action by written consent, in the discretion of such proxy, to the same extent it would have the power to vote or act by written consent and
(2) grants the Company a
right for 90 days from the closing of the rights offering to repurchase such Excess Shares at the lesser of the $8.50 per share subscription price and the closing price of the Company's Common
Stock on the New York Stock Exchange on the trading day immediately prior to the date on which notice is sent to the holder of the Company's intent to exercise such right, which notice must be sent
prior to the expiration of such 90 day period. The undersigned agrees to cooperate with the Company and provide to the Company any and all information requested by the Company in connection
with the exercise of the rights granted in the previous sentence. 

        Box 1.
o Please DO NOT EXERCISE RIGHTS for shares of Common Stock. 

        Box 2. o Please EXERCISE RIGHTS for shares of Common Stock as set forth below. 

													
	 
	 	Number of Shares

to Purchase 	 	 
	 	Subscription Price 	 	 
	 	Payment 	 	 

	Subscription Right	 	

(Not to exceed the

Maximum Shares)	 	×	 	$8.50	 	=	 	

	 	Line 1
	
You are entitled to subscribe for                 shares of Common Stock for every right you hold (the
"Maximum Shares"). To the extent you include a number greater than the Maximum Shares above, you will be deemed to have elected to purchase the Maximum Shares.
	
 Over-Subscription Right	
 	

(Not to exceed the

Maximum Over-

Subscription)	
 	

×	
 	

$8.50	
 	

=	
 	

	
 	

Line 2

The Over-Subscription Right allows you to subscribe for an additional amount equal to up to 20% of the Maximum Shares, subject to certain limitations, including
pro-ration, as described in the Prospectus (the "Maximum Over-Subscription"). To the extent you include a number greater than
the Maximum Over-Subscription above, you will be deemed to have elected to purchase the Maximum Over-Subscription.

Total Payment Required                $

(Sum of Lines 1 & 2; must equal total amounts in Box 3) 

        Box 3.
o Payment in the following amount is enclosed $                        . 

        Box 4. o Please deduct payment from the following account maintained by you as follows: 

			
	

 	 	

 
	Type of Account	 	Account Number

Amount
to be deducted: $ 

			
	

 	 	

 
	Signature	 	Date
	

 	
 	

 
	Please type or print name	 	 

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Exhibit 4.10

[FORM OF BENEFICIAL OWNER ELECTION FORM] BENEFICIAL OWNER ELECTION FORM

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